Frequently Asked Questions

Absolutely. Our probiotics are naturally occurring bacteria that already exist in soil and water ecosystems. They don't persist in the environment, don't bioaccumulate in food chains, and actually support wastewater treatment processes by adding beneficial bacteria that help break down organic matter. Our formulations use plant-based surfactants, contain no petroleum-derived chemicals, produce no toxic waste in manufacturing, and have 60-80% lower carbon footprints than conventional chemical cleaners. Plus, our concentrated formulas mean less packaging waste and lower shipping emissions. When you choose probiotic cleaning, you're preventing 15-25kg of harmful chemicals from entering waterways annually whilst reducing your carbon footprint by 50-100kg CO₂ equivalent. It's effective cleaning that supports environmental health.

We use recyclable HDPE plastic bottles made from minimum 25% post-consumer recycled materials (increasing to 50% by 2027). All packaging is fully recyclable through standard kerbside collection. We're continuously working to improve packaging sustainability and plan to introduce refill options and plant-based bottles in the near future. We deliberately avoid over-packaging—no unnecessary boxes, no plastic wrap, minimal labelling. Concentrated formulas mean you need less product, reducing packaging waste per clean. Our goal is fully circular packaging by 2028.

Probiotic cleaning helps the environment through multiple pathways: (1) Zero chemical pollution—no toxic substances entering waterways, (2) Lower carbon footprint—biological production uses 60-80% less energy than chemical synthesis, (3) Biodegradability—all ingredients break down naturally and completely, (4) Supports aquatic ecosystems—beneficial bacteria improve rather than harm water quality, (5) Reduced packaging—one product replaces many specialised cleaners, (6) Energy efficiency—effective in cold water eliminates heating energy, (7) Longevity—surfaces stay cleaner longer means less frequent cleaning and reduced product consumption. Every household switching to probiotics prevents approximately 25kg harmful chemicals and 75kg CO₂ from entering the environment annually. Multiply by millions of households and the impact becomes transformational.

Probiotic cleaning is actually more effective in the long term. Whilst conventional cleaners work only whilst wet (typically 2-10 minutes), probiotics continue working for up to 72 hours after application. Studies from European hospitals using probiotic cleaning have shown dramatic reductions in harmful bacteria compared to chemical disinfectants—in some cases, 80% reduction in pathogens versus 60% for chemical alternatives. Probiotics reach into microscopic crevices that chemical cleaners cannot penetrate, providing deeper, longer-lasting cleanliness. The beneficial bacteria establish protective populations on surfaces, continuously breaking down organic matter and preventing pathogen colonisation. For day-to-day home cleaning, probiotics match or exceed chemical performance whilst offering superior ongoing protection.

Yes, probiotic cleaners are exceptionally safe. Renu'd products use the same probiotic strains (Bacillus subtilis, B. amyloliquefaciens, B. licheniformis) found in dietary supplements and fermented foods. They're safe for children, pets, and even if accidentally ingested. Unlike conventional cleaners, there are no toxic fumes, no harsh chemicals, no warning labels, and no need to evacuate rooms during cleaning. You can clean whilst your family is at home without worrying about chemical exposure. The bacteria are non-pathogenic (do not cause disease), non-toxic, and have GRAS (Generally Recognised As Safe) status. They're also gentle on skin—no irritation or dermatitis risk that often comes with chemical cleaners. For families, pets, and those with chemical sensitivities, probiotics offer cleaning without compromise.

Probiotic cleaners work on virtually all surfaces: countertops (granite, quartz, laminate, marble), floors (tile, wood, laminate, vinyl, concrete), glass and mirrors, stainless steel, ceramic and porcelain, sealed wood, plastic surfaces, fabric and upholstery, carpets and rugs, grout and tile, painted surfaces, and even electronics (when applied to cloth first). The same bottle works throughout your entire home—no need for multiple specialised cleaners. The only exceptions are surfaces that require acidic cleaning (heavy limescale removal) or situations requiring verified medical-grade disinfection. For 90% of home cleaning tasks, one probiotic product replaces an entire cupboard of conventional cleaners.

Probiotic cleaning uses beneficial bacteria to clean and protect surfaces. Unlike conventional cleaners that kill all bacteria indiscriminately, probiotic cleaners introduce helpful microbes that break down organic matter, eliminate harmful bacteria, and neutralise odours. When sprayed onto a surface, these bacteria activate and reproduce rapidly, completely breaking down dirt, odours, and harmful bacteria. The beneficial bacteria compete with harmful bacteria for food sources, effectively reducing pathogenic populations whilst continuing to work for days after application. Think of it as creating an immune system for your home—natural, ongoing protection that actually improves over time.

Probiotic cleaners contain selected species of Bacillus bacteria that remain dormant until applied to surfaces. They work through three powerful mechanisms: (1) Enzyme Production - probiotics produce biosurfactants and enzymes that break down dirt and grime into smaller particles which the bacteria then consume; (2) Long-Lasting Clean - because the bacteria are alive, they continue cleaning surfaces long after you've finished wiping, preventing further dirt buildup and outcompeting harmful bacteria for nutrients; (3) Deep Penetration - beneficial bacteria reach into microscopic crevices that chemical cleaners cannot penetrate, providing thorough, lasting cleanliness. Recent hospital studies show probiotic-based cleaning not only controls surface microbial contamination but also reduces drug-resistant bacteria by up to 90%.

Week 1: Start with one or two areas (kitchen counter, bathroom sink). You'll notice surfaces feel different—smoother, with less residue buildup. Some users report a slight "adjustment period" as beneficial bacteria establish. Week 2-3: Expand to more areas of your home. You'll notice odours diminishing (especially drains and bins), surfaces staying cleaner longer between applications, and less effort required for routine cleaning. Week 4: Establish your new routine. Most users report needing to clean 30-50% less frequently whilst maintaining better hygiene. Surfaces you've been treating for three weeks show the greatest improvement—the cumulative effect becomes obvious. Check out our comprehensive First Month Guide for detailed tips and expectations.

For best results when transitioning: (1) Do a final thorough clean with mild soap and water to remove conventional cleaner residues, (2) Rinse surfaces well and let dry completely, (3) Begin using Renu'd exclusively on cleaned surfaces, (4) Be patient—beneficial bacteria need 1-2 weeks to establish fully, (5) Avoid using antibacterial products, bleach, or harsh chemicals on surfaces you're treating with probiotics. You don't need to throw away conventional cleaners immediately—keep them for specific situations (toilet bowls, heavy limescale), but transition as many surfaces as possible to probiotics. The more consistently you use probiotics, the better and faster your results.

Subscribe and get free shipping on all orders. Choose your delivery frequency (every 1-6 months based on your usage), and we'll automatically send fresh products on your schedule. You can pause, skip, or cancel anytime—no commitments, no penalties, no questions asked. Manage everything through your account dashboard: change frequency, swap products, update shipping address, or pause for holidays. Subscribers also get early access to new products and special promotions. It's convenience without commitment—designed to adapt to your life.

We offer free shipping on all subscription orders to UK addresses. For one-time purchases, standard shipping is £4.99. All orders ship within 1 business day via Royal Mail or courier (depending on order size). You'll receive tracking information via email as soon as your order ships, typically arriving within 2-3 business days for most UK destinations. For Northern Ireland, Scottish Highlands, and offshore locations, delivery may take 3-5 business days. International shipping currently not available but coming soon.

We offer a 30-day money-back guarantee. If you're not completely satisfied for any reason, contact us within 30 days of purchase for a full refund—no questions asked, no return shipping required for first-time customers. We stand behind our products because we know they work, but we also understand probiotic cleaning is different and not for everyone. See our Returns Policy for complete details. Our customer service team is here to help troubleshoot any issues before resorting to returns—often simple usage adjustments make all the difference.

Absolutely. You have complete control through your account dashboard. Change delivery frequency, swap products, adjust quantities, update shipping address, skip a delivery, or cancel entirely—all with a few clicks, no phone calls required. Changes made up to 3 days before your next scheduled shipment will apply to that order. No penalties, no fees, no hassle. We want subscriptions to work for you, and flexibility is key. If you need help managing your subscription, our customer service team is happy to assist.

Vinegar and baking soda are mild, natural cleaners with limitations. Vinegar (acidic) dissolves minerals but is weak against organic soils and doesn't provide ongoing protection. Baking soda (alkaline) provides mild abrasive and deodorising action but limited cleaning power. Neither addresses microbiology—they don't establish beneficial bacteria or provide competitive exclusion. Probiotic cleaners offer comprehensive cleaning (immediate + ongoing), biological odour elimination (not just masking), ongoing surface protection, and deep cleaning through enzyme action. You can use vinegar for specific tasks (descaling kettles), but for general cleaning, probiotics deliver superior results. They're the natural cleaner that actually works comprehensively.

Enzymatic cleaners contain enzymes (often derived from bacteria) but no live bacteria. They work whilst wet, then stop when enzymes denature or are wiped away. Probiotic cleaners contain live bacteria that continuously produce fresh enzymes for days after application. Enzymatic cleaners provide single-application enzyme action, whilst probiotic cleaners provide continuous enzyme production + competitive exclusion + biofilm management + ongoing protection. Enzymatic cleaners are an improvement over pure chemical cleaners but don't offer the comprehensive, long-term benefits of living probiotic systems. It's the difference between giving someone fish (enzymes) versus teaching them to fish (bacteria producing enzymes continuously).

Using Renu'd is straightforward: (1) Shake bottle gently to distribute bacteria evenly, (2) Spray directly onto the surface—don't dilute, (3) Leave for 2-3 minutes to allow probiotics to activate and begin working, (4) Wipe with a clean, dry cloth, (5) For tough stains or heavy soiling, let sit for 5-10 minutes before wiping, (6) No rinsing required. The surface is immediately clean and safe, with beneficial bacteria continuing to work for hours and days after. For best results, avoid using other cleaners on the same surfaces—conventional chemicals kill the beneficial bacteria.

Most users find they can clean significantly less frequently than with conventional cleaners. High-touch surfaces (kitchen counters, bathroom sinks) might need cleaning every 2-3 days, floors and bathrooms can often go a week or more between cleanings, and low-touch surfaces (window sills, light switches) might need only weekly or fortnightly cleaning. The probiotics continue working between applications, breaking down new organic matter and preventing pathogen establishment, so surfaces stay cleaner longer. Many customers report reducing cleaning frequency by 30-50% whilst maintaining better hygiene. Start with your normal schedule, then extend as you notice surfaces staying cleaner.

Yes, but it may require multiple applications for tough, long-standing stains. Probiotic cleaners work differently from chemical cleaners—rather than instant dissolution, enzymes progressively break down organic matter at molecular level. For stubborn stains: apply Renu'd and let sit for 10-30 minutes (or overnight for severe cases) before wiping, repeat daily for 3-7 days for established stains, and you'll see progressive improvement with each application. Grease buildup, protein stains, organic residues, and biofilm deposits all respond well to persistent probiotic treatment. For inorganic stains (limescale, rust), probiotics are less effective—use appropriate chemical cleaners for these specific issues, then return to probiotic maintenance.

Not on the same surfaces at the same time. Conventional cleaners (especially those containing bleach, antibacterials, or strong disinfectants) kill the beneficial bacteria in Renu'd, negating the probiotic effect. When transitioning to probiotics: do a final thorough clean with mild soap and water to remove chemical residues, rinse well and let dry, then begin using Renu'd exclusively on those surfaces. Within 1-2 weeks, beneficial bacteria will establish and you'll notice improved results. You can use conventional cleaners for specific needs (heavy limescale, toilet bowls, after illness), then resume probiotic cleaning 24 hours later. For best results, embrace probiotics fully rather than mixing approaches.

A 500ml bottle typically lasts 4-8 weeks for the average household, depending on home size, surface area cleaned, and usage frequency. Larger homes or heavier users might go through bottles faster, whilst smaller homes or those extending cleaning intervals (as probiotics enable) might stretch to 8-10 weeks. Most customers find a 60-day (2-month) subscription interval works perfectly, but frequency can be adjusted based on your specific needs. Because one probiotic product replaces multiple conventional cleaners, overall product consumption usually decreases despite potentially using more per clean.

No. We never test on animals and our products are 100% cruelty-free. The bacterial strains we use have decades of safe use history in food, agriculture, and supplements—no animal testing required to confirm safety. Our formulations use only ingredients with established safety profiles. We're committed to ethical practices throughout our supply chain and proudly cruelty-free certified.

Yes, probiotic cleaners are exceptionally safe for homes with babies and young children. No toxic fumes or chemicals, safe if touched (no skin irritation), safe if accidentally ingested (same bacteria as in probiotic supplements), no harsh chemical residues on surfaces, and no need to keep children away during or after cleaning. You can clean high chairs, toys, floors, and changing tables knowing there's no chemical exposure risk. Many parents switch to probiotics specifically when starting families, eliminating toxic chemical exposure whilst maintaining excellent hygiene. The natural approach to cleaning that doesn't compromise your baby's health.

Absolutely. Renu'd products are completely safe for homes with pets. No toxic ingredients that could harm if licked, no harsh chemical fumes affecting sensitive animal respiratory systems, safe on surfaces pets contact regularly, and beneficial bacteria are the same as in veterinary probiotic supplements. You can clean food and water bowls, floors, furniture, and pet bedding without worry. Many customers report their pets seem healthier after switching to probiotics—likely due to reduced chemical exposure and improved environmental microbiology. It's cleaning that protects your entire family, including four-legged members.

Yes, and many people with allergies or asthma find probiotic cleaners dramatically better than conventional products. No VOCs (volatile organic compounds) that trigger respiratory symptoms, no harsh chemical fragrances or fumes, no respiratory irritants, and reduced airborne particulates over time (bacteria settle and bind dust). Studies show probiotic cleaning can actually improve indoor air quality and reduce allergy symptoms by establishing balanced microbiology that suppresses mould and allergenic bacteria. However, if you have specific mould allergies, consult your doctor—whilst probiotics suppress mould growth, the bacterial spores themselves could theoretically trigger very sensitive individuals. For most allergy and asthma sufferers, probiotics offer welcome relief from chemical cleaners.

Bacillus spores are dormant, protective structures that bacteria form to survive harsh conditions. When environmental conditions are unfavourable (dry, no nutrients, temperature extremes), Bacillus bacteria transform into spores—metabolically inactive but alive, with thick protective coatings. Spores can survive for years in products without degrading. When conditions improve (moisture + nutrients on surfaces), they germinate within minutes, transforming back into active bacteria that reproduce and produce cleaning enzymes. This spore capability is why probiotic cleaners have long shelf lives (18 months) and deliver live bacteria exactly when and where needed. It's brilliant natural engineering—dormant in the bottle, active on your surfaces.

CFU stands for Colony Forming Units—a measure of viable (alive and capable of reproducing) bacteria. When you see "10⁸ CFU/ml" on a probiotic cleaner, it means 100 million bacteria per millilitre. A typical Renu'd product contains 100 million to 1 billion CFUs per millilitre, ensuring enough beneficial bacteria to establish dominance on surfaces. Higher CFU counts generally mean faster, more effective colonisation and better competitive exclusion of harmful bacteria. Quality probiotic cleaners maintain high CFU counts throughout their shelf life through proper formulation and spore technology. It's like planting a garden—enough seeds ensure successful growth.

Enzymes are biological catalysts produced by probiotic bacteria that accelerate chemical reactions millions of times faster than they'd occur naturally. Different enzymes target different soils: Proteases break chemical bonds in proteins (blood, milk, meat, egg), Lipases digest fats and oils (cooking grease, body oils, butter), Amylases break down starches and carbohydrates (sugars, flour, pasta), and Cellulases degrade plant fibres. Enzymes work at molecular level, turning large, sticky molecules into small, easily removed substances. They remain active for hours after application, continuing to work whilst you're doing other things. They're specific (target only certain molecules), reusable (each enzyme molecule can work repeatedly), and effective under mild conditions (room temperature, neutral pH). It's molecular-level cleaning that chemicals cannot match.

Competitive exclusion is the principle that beneficial bacteria prevent harmful bacteria from establishing by occupying space and consuming resources. When probiotic bacteria colonise a surface, they: occupy physical space harmful bacteria might settle, consume nutrients (organic matter) that pathogens need, produce antimicrobial compounds targeting specific harmful species, form stable biofilms that resist pathogen invasion, and create environmental conditions unfavourable to harmful bacteria. It's like a healthy lawn crowding out weeds. This provides ongoing protection—unlike chemical cleaners that leave surfaces vulnerable to immediate recontamination, beneficial bacteria actively defend against harmful species for days. Studies show this reduces pathogen populations more effectively than chemical disinfection alone.

Biofilms are complex communities of bacteria encased in protective matrices (slime layers) that form on surfaces, particularly in drains, shower areas, and damp locations. They cause persistent odours, harbour pathogens, resist chemical cleaners, and regenerate quickly after treatment. Conventional cleaners fail because they cannot penetrate the protective matrix—bacteria deep within survive and rebuild. Probiotic bacteria excel at biofilm management through: enzyme production that degrades the protective matrix from within, physical penetration into biofilm structures, competitive exclusion preventing harmful biofilm reformation, and beneficial biofilm formation that occupies surfaces protectively. For established biofilms, expect 1-3 weeks of regular probiotic application to fully resolve. Ongoing use prevents reformation entirely.

Yes! One major advantage of probiotic cleaning is effectiveness in cold water. Whilst warm water (30-40°C) accelerates bacterial germination and enzyme activity, probiotics function well in cold water (10-15°C). The surfactants provide immediate cleaning, bacterial spores germinate (more slowly but successfully), enzymes remain active (at reduced rates initially), and bacteria establish populations given time. Long-term results in cold water are comparable to warm water application. This offers significant benefits: energy savings (no water heating required), environmental benefits (reduced carbon footprint), cost savings (lower utility bills), and surface safety (no heat damage risk). For households conscious of energy use, cold-water probiotic cleaning delivers excellent results whilst reducing environmental impact.

Disinfecting kills microorganisms (both harmful and beneficial) using chemicals, providing immediate but temporary sterility. Surfaces are vulnerable to rapid recolonisation, often by fast-growing pathogens arriving first. Chemical residues may persist, and repeated use contributes to antimicrobial resistance. Probiotic cleaning establishes beneficial bacteria that compete with and suppress harmful species, provides ongoing protection for days after application, reduces pathogen populations through competition rather than killing, improves over time as beneficial populations establish, and leaves no harmful residues whilst supporting healthy microbiology. For medical situations requiring verified pathogen elimination, disinfection is appropriate. For daily home hygiene, probiotic cleaning provides superior long-term results with better safety and environmental profiles.

No—in fact, they help combat it. Antimicrobial resistance develops when bacteria evolve to survive antibiotics or chemical antimicrobials through repeated exposure. Probiotic cleaning works through competitive exclusion and enzyme production, not antimicrobial chemicals, so there's no selection pressure creating resistant strains. Hospital studies show probiotic cleaning reduces antimicrobial-resistant bacteria by up to 90% compared to chemical disinfectants. By avoiding antibacterial chemicals in daily cleaning, you reduce the evolutionary pressure driving resistance development. It's a sustainable approach that works with biology rather than against it.

Beneficial Bacillus bacteria can survive on surfaces for days to weeks, depending on conditions. With moisture and organic matter (favourable conditions), they actively reproduce and thrive for 3-7 days per application. In dry conditions, bacteria enter dormant states and can survive weeks to months as spores. They continuously work whilst active—producing enzymes, breaking down organic matter, competing with harmful bacteria. Regular application (every few days to weekly) maintains active populations providing ongoing protection. Unlike chemical cleaners where protection ends when the surface dries, probiotic cleaning creates living, working populations that persist and protect long after application.

Yes! Probiotic cleaners are food-safe—no rinsing required even on food preparation surfaces. The bacteria are the same species used in fermented foods and probiotic supplements. Clean cutting boards, countertops, sinks, refrigerator shelves, and any food-contact surface with confidence. The beneficial bacteria actually provide ongoing protection against food-borne pathogens through competitive exclusion. It's one of the safest options for kitchen cleaning—no chemical residues that could transfer to food.

For drains and drain odour elimination: Pour 50-100ml probiotic cleaner directly down drain before bed, let work overnight (bacteria break down organic biofilm), repeat nightly for one week for established odours, then weekly for maintenance. The bacteria penetrate biofilms causing odours, break down trapped organic matter, and establish beneficial populations throughout pipes. For garbage disposals, spray liberally and run briefly with cold water. For severe blockages, address mechanically first, then establish probiotic populations to prevent recurrence. Customers report this is one of the most impressive applications—stubborn drain odours disappear completely.

Yes, Renu'd works excellently on fabrics. For carpets: vacuum first, spray lightly (don't oversaturate), work into pile with brush or cloth, allow to air dry completely, and vacuum again when dry. For upholstery: test on inconspicuous area first, spray lightly and blot (don't rub), allow to air dry, repeat for tough stains or odours. Probiotic cleaners excel at removing organic odours from fabrics (pets, spills, body oils) that conventional cleaners only mask. The bacteria penetrate fabric fibres, break down odour-causing compounds, and leave no sticky residues that attract dirt. For deep carpet cleaning, consider pre-treating with probiotics, then using your normal carpet cleaner. The biological action complements mechanical extraction.

Yes, though approach depends on your goals. For regular toilet cleaning: spray bowl, under rim, and seat, leave 5-10 minutes, brush and flush. For toilet bowls, some users prefer using a mild chemical cleaner for heavy mineral deposits (limescale), then maintaining with probiotics. For maximum probiotic benefit, use exclusively—the beneficial bacteria suppress odour-causing bacteria and help prevent buildup. For septic systems, probiotic cleaners are ideal—they support healthy septic function rather than harming beneficial bacteria like harsh chemicals do. Many customers use chemicals occasionally for deep cleaning, then return to daily probiotic maintenance.

Store at room temperature (5-25°C), away from direct sunlight and heat sources. The probiotics can survive a wide temperature range, but extreme heat (above 40°C) may trigger premature germination, and freezing may affect product consistency (though spores survive). Keep bottles sealed when not in use to maintain freshness and prevent contamination. Store in a cool, dry cupboard—under the sink is fine as long as it doesn't get excessively hot. Avoid storing in vehicles during summer (excessive heat) or garages during winter (potential freezing). Proper storage ensures maximum effectiveness throughout the product's shelf life.

Yes, but they have a generous shelf life. Unopened bottles last 18 months from manufacture date. Once opened, use within 6-9 months for optimal effectiveness—the bacteria remain viable, but counts gradually decrease over time. The expiration date is printed on each bottle. Products past expiration aren't dangerous, but effectiveness may be reduced due to lower viable bacterial counts. If you're unsure about a bottle's viability, it should still produce some foam when shaken—if it doesn't, bacterial activity has ceased. Our subscription model ensures you receive fresh products regularly, eliminating expiration concerns.

Bacterial spores survive freezing without damage—they're designed by nature to withstand harsh conditions. However, freezing may affect product consistency (separation of ingredients). If a bottle freezes: allow it to thaw completely at room temperature, shake vigorously to remix ingredients, check consistency (should return to normal), and use as usual. Effectiveness should be unaffected as spores remain viable. Whilst occasional freezing won't ruin products, avoid repeated freeze-thaw cycles which may degrade other ingredients. If you live in an area with freezing winters, store products indoors rather than in unheated garages or sheds.

Probiotic cleaning works differently from conventional cleaners. Chemical cleaners provide instant (but temporary) results through aggressive dissolution. Probiotics provide comparable initial cleaning through surfactants, then progressive improvement through biological action over hours and days. For heavily soiled surfaces or years of chemical cleaner buildup, full results may take 1-3 weeks of regular use. Be patient—the cumulative effect is worth it. Most customers report week 3-4 is when they truly appreciate the difference. Surfaces feel different (cleaner, smoother), stay cleaner longer, and require less effort to maintain. If you're not seeing any improvement after two weeks, contact our customer service team for troubleshooting.

Yes, but preparation matters. Bleach residues kill beneficial bacteria, so thoroughly rinse any surface previously cleaned with bleach. Wash with mild soap and water, rinse very well with plain water, allow to dry completely, then begin using probiotics. It may take a few applications for beneficial bacteria to fully establish if bleach residues remain. For surfaces regularly treated with bleach (like toilet bowls), you can switch to probiotics gradually—reduce bleach frequency whilst increasing probiotic use, allowing beneficial populations to establish. Within 2-3 weeks, you can often eliminate bleach entirely whilst maintaining excellent hygiene.