# DupeStack
> UK consumer-advocacy site that deconstructs branded household, garden, pool and wellness products into bulk chemicals, with mixing maths and DIY stacks.

Site: https://dupestack.co.uk
Contact: hello@dupestack.co.uk
Language: en-GB

Supplements are compared as food supplements, not medicines. Some links are Amazon Associates.

## Pages
- [Home](https://dupestack.co.uk/)
- [Teardowns](https://dupestack.co.uk/teardowns/)
- [Cupboard chemistry](https://dupestack.co.uk/cupboard-chemistry/)
- [Calculator](https://dupestack.co.uk/calculator/)
- [About](https://dupestack.co.uk/about/)
- [Affiliate disclosure](https://dupestack.co.uk/disclosure/)
- [Contact](https://dupestack.co.uk/contact/)
- [Full LLM index](https://dupestack.co.uk/llms-full.txt)

## Category hubs
- [Patio & exterior](https://dupestack.co.uk/category/patio-exterior/)
- [Lawn & garden](https://dupestack.co.uk/category/lawn-garden/)
- [Household cleaning](https://dupestack.co.uk/category/household-cleaning/)
- [Pool & spa](https://dupestack.co.uk/category/pool-spa/)
- [Wellness & supplements](https://dupestack.co.uk/category/wellness-supplements/)

## Teardowns
- [Wet & Forget Exterior Surface Cleaner](https://dupestack.co.uk/teardowns/wet-and-forget-exterior/): A dilute quaternary ammonium biocide sold as a lifestyle patio product. The active is commodity BAC 50; the brand is paying for the trigger bottle and the television advert.
- [Miracle-Gro Organic Liquid Seaweed](https://dupestack.co.uk/teardowns/miracle-gro-organic-liquid-seaweed/): A watered-down cold-pressed kelp extract. Soluble Ascophyllum nodosum powder is the same crop, sold by the kilogram to hydroponic growers, at a fraction of the bottled price.
- [Evergreen Complete 4-in-1 Lawn Feed & Moss Killer](https://dupestack.co.uk/teardowns/evergreen-complete-4-in-1/): The moss-blackening punch is ferrous sulphate — the same agricultural iron used on bowling greens. The 4-in-1 box is mostly filler, NPK dust and a brand. Buy the salt.
- [Vanish Oxi Action Fabric Stain Remover](https://dupestack.co.uk/teardowns/vanish-oxi-action/): Sodium percarbonate is a solid hydrogen-peroxide adduct. The pink tub is perfume, dye and a scoop. Technical-grade percarbonate is the same oxidiser used in bulk laundries.
- [Clearwater pH Plus Spa / Pool Balancer](https://dupestack.co.uk/teardowns/clearwater-ph-plus/): pH Plus is dense soda ash — 99% sodium carbonate, CAS 497-19-8. Pool-shop packaging turns a £2.70/kg commodity into an £11.50/kg ritual.
- [Patio Magic!](https://dupestack.co.uk/teardowns/patio-magic/): Another BAC patio biocide in a different coloured bottle. Same quaternary ammonium as Wet & Forget; same bulk drum of BAC 50. You are paying for the brand, not a different molecule.
- [HG Rust Stain Remover](https://dupestack.co.uk/teardowns/hg-rust-stain-remover/): Oxalic acid is the classic rust and tannin bleach for masonry. HG bottles a dilute solution; a kilogram of crystals makes tens of litres of the same chemistry.
- [Growmore Garden Fertiliser](https://dupestack.co.uk/teardowns/growmore-garden-fertiliser/): 7-7-7 is a commodity NPK blend. The cardboard box is a portioned sack of agricultural compound fertiliser. Buy it by the 25 kg bag from a merchant, not 4 kg at a time from a garden centre.
- [Miracle-Gro All Purpose Liquid Plant Food](https://dupestack.co.uk/teardowns/miracle-gro-all-purpose-liquid/): A dilute bottle of soluble NPK. Hydroponic 20-20-20 (or similar) powder is the same three numbers, un-dyed and un-marketed, at a gram per litre instead of a capful of coloured water.
- [Domestos Original Thick Bleach](https://dupestack.co.uk/teardowns/domestos-original/): Sodium hypochlorite plus a thickener so it clings to ceramic. Thin household bleach is the same oxidiser without the brand, the dye and the TV campaign. Never mix it with acids or ammonia.
- [Cillit Bang Limescale Destroyer](https://dupestack.co.uk/teardowns/cillit-bang-limescale/): Hard-water scale is calcium carbonate. Citric acid dissolves it. The trigger bottle is perfume and a nozzle; a bag of food-grade citric acid is the same attack on the kettle, the head and the pan.
- [Clearwater pH Minus](https://dupestack.co.uk/teardowns/clearwater-ph-minus/): pH Minus is dry acid — sodium bisulphate. Pool retail is a small tub; chemical suppliers sell it in 5 kg lots for a third of the per-kilo price.
- [Clearwater Multifunction Chlorine Tablets](https://dupestack.co.uk/teardowns/clearwater-chlorine-tablets/): The tablet is 90% TCCA — the same stabilised chlorine used in bulk 200 g pucks. ‘Multifunction’ is a pinch of clarifier and a lot of packaging. Buy TCCA, dose from an SDS, and keep cyanuric acid in range.
- [Berocca Original](https://dupestack.co.uk/teardowns/berocca-original/): An effervescent sugar-and-flavour delivery system around ascorbic acid and B vitamins. Food-grade vitamin C powder is the same molecule. This is a supplement deconstruction, not medical advice.
- [BetterYou Magnesium Oil Spray](https://dupestack.co.uk/teardowns/betteryou-magnesium-oil/): ‘Magnesium oil’ is a saturated solution of magnesium chloride, not a lipid. Flakes from the same Dead Sea / Zechstein geology dissolve in water for pennies. Not a medicine; evidence for transdermal magnesium is mixed.
- [Clearwater Total Alkalinity TA Plus](https://dupestack.co.uk/teardowns/clearwater-total-alkalinity-plus-dupe/): Standard baking soda sold at a 1,200% retail markup under spa branding.
- [Fi-Clor Hardness Plus (Calcium Increaser)](https://dupestack.co.uk/teardowns/ficlor-hardness-plus-calcium-increaser-dupe/): Repackaged de-icing and industrial desiccating salt marked up tenfold.
- [HG Hagesan Black Spot Remover](https://dupestack.co.uk/teardowns/hg-patio-black-spot-remover-dupe/): Standard commercial bleach solution sold at five times agricultural merchant prices.
- [The Pink Stuff (StarDrops) The Miracle Cleaning Paste](https://dupestack.co.uk/teardowns/the-pink-stuff-miracle-cleaning-paste-dupe/): Simple fine chalk (calcium carbonate) suspended in vegetable soap and pink dye.
- [Astonish Specialist Mould & Mildew Remover](https://dupestack.co.uk/teardowns/astonish-specialist-mould-mildew-remover-dupe/): Highly diluted bleach sold with a plastic spray trigger. Diluting bulk hypochlorite costs pennies.
- [LMNT Electrolyte Drink Mix](https://dupestack.co.uk/teardowns/lmnt-recharge-electrolyte-drink-mix-dupe/): Costs over £1.40 per sachet for about £0.06 worth of common mineral salts. Food supplement comparison, not medical advice.
- [Ryze Organic Mushroom Coffee](https://dupestack.co.uk/teardowns/ryze-organic-mushroom-coffee-dupe/): Heavily marketed low-ratio mushroom mycelium powder diluted with standard instant coffee. Food supplement, not a medicine.
- [Bloom Nutrition Greens & Superfoods Powder](https://dupestack.co.uk/teardowns/bloom-nutrition-greens-and-superfoods-dupe/): Seven proprietary blends hide sub-clinical doses of spirulina, chlorella and enzymes behind cheap chicory root and maltodextrin. Food supplement comparison, not a medicine.
- [Lemme Purr Vaginal Health Gummies](https://dupestack.co.uk/teardowns/lemme-purr-vaginal-probiotic-gummies-dupe/): High-sugar gummies with low CFU counts, sold at a prestige markup. Delayed-release capsules give bacteria a better chance of surviving the stomach. Food supplement comparison, not a medicine or a treatment.
- [Viral TikTok brands Pure Himalayan Shilajit Resin](https://dupestack.co.uk/teardowns/viral-himalayan-shilajit-resin-dupe/): Unregulated resin jars often lack a standardised fulvic-acid assay and have a poor heavy-metal record. A third-party-tested extract capsule is the less romantic, more measurable option. Food supplement comparison, not a medicine.
- [Beam Dream Nighttime Sleep Powder](https://dupestack.co.uk/teardowns/beam-dream-sleep-powder-dupe/): Over £2.40 a cup for cheap, gut-irritating magnesium citrate and micro-dosed botanicals. Bisglycinate plus free-form L-theanine is the same night-time stack without the cocoa tax. Food supplement comparison, not a medicine.
- [Artisan sea moss brands Wildcrafted Gold Sea Moss Gel](https://dupestack.co.uk/teardowns/viral-raw-sea-moss-gel-dupe/): £28 every fortnight for 90% boiled water and seaweed gel that spoils in two weeks. Dry Irish moss hydrates into litres of the same gel. Food supplement comparison, not a medicine.
- [Mo Bacter Organic Lawn Moss Killer & Fertiliser](https://dupestack.co.uk/teardowns/mo-bacter-organic-lawn-moss-killer-dupe/): The moss dies because of high potash, not a magic organic patent. Sulphate of potash (0-0-50) supplies the same K2O without iron staining; a cheap Bacillus or compost-tea inoculant does the digestion step. A 20 kg 5-5-20 bag is mostly filler next to 10 kg of 50% K2O.
- [Doff Natural Hormone Rooting Powder](https://dupestack.co.uk/teardowns/doff-hormone-rooting-powder-dupe/): A 75 g tub is 74.9 g of talc carrying 75 mg of IBA. That is about £67/kg for cosmetic powder. 0.5 g of pure IBA in 500 g of unscented talc is the same 0.1% dip.
- [SB Plant Invigorator & Bug Killer](https://dupestack.co.uk/teardowns/sb-plant-invigorator-and-bug-killer-dupe/): Dilute foliar urea plus a potassium fatty-acid soap that smothers soft-bodied insects. A 500 ml bottle at 10 ml/L makes about 50 litres; the same working spray from bulk soap and urea is pence per litre.
- [Everbuild Mortar Clen Brick & Patio Acid](https://dupestack.co.uk/teardowns/everbuild-mortar-clen-brick-acid-dupe/): Retail brick acid is technical hydrochloric acid cut to about 9%. 5 litres of 36% acid plus 15 litres of water is 20 litres of the same working strength.
- [Thompson's Water Seal Masonry Protector](https://dupestack.co.uk/teardowns/thompsons-water-seal-masonry-protector-dupe/): A dilute siloxane in a 5 litre tin. Trade water-based silane/siloxane concentrates at 50% dilute 1+9 to about 5% working sealer — same job, more litres, less solvent perfume.
- [Clearwater Chlorine Stabiliser & UV Shield](https://dupestack.co.uk/teardowns/clearwater-chlorine-stabiliser-cyanuric-acid-dupe/): 100% cyanuric acid in a 1 kg spa tub. The same granules sell in 5 kg lots at a fraction of the per-kilo price. Dose to a test kit (typically 30–50 ppm CYA), not a marketing scoop.
- [Lo-Chlor No More Scale Inhibitor](https://dupestack.co.uk/teardowns/lo-chlor-scale-and-stain-inhibitor-dupe/): A 15% phosphonate in a 1 litre bottle. Industrial 60% HEDP is the same sequestering chemistry; 50 ml of 60% in 10,000 litres is a typical maintenance dose.
- [Viral candy brands Creatine Monohydrate Daily Gummies](https://dupestack.co.uk/teardowns/viral-creatine-monohydrate-gummies-dupe/): A 30-day tub is often 3 g creatine per day in a sugar gummy, not the 5 g used in most sports-nutrition trials, at roughly 90p a serving. 1 kg of micronised powder is 200 × 5 g servings. Food supplement comparison, not medical advice.
- [Viral health drops High-Strength Berberine Complex](https://dupestack.co.uk/teardowns/viral-berberine-hcl-metabolism-dupe/): Social-media ‘natural Ozempic’ branding on ordinary berberine HCl. A 60-capsule 300 mg tub is a short, pricey course next to 120 × 500 mg capsules. Not a medicine and not a substitute for prescribed drugs.
- [Mielle Rosemary Mint Scalp & Hair Strengthening Oil](https://dupestack.co.uk/teardowns/mielle-rosemary-mint-scalp-hair-oil-dupe/): A small dropper of cheap carrier oils with a little rosemary. 25 drops of steam-distilled rosemary in 50 ml of sweet almond oil is about 2% essential oil — the same order of strength, without the 59 ml brand tax.
- [Algon Organic Path, Patio & Deck Cleaner Concentrate](https://dupestack.co.uk/teardowns/algon-organic-path-patio-deck-cleaner-dupe/): The ‘organic patio cleaner’ is about 18% acetic acid with a drop of sugar-derived surfactant. Dilute 1:3 and you have ~4.5% vinegar. Spirit vinegar at 25% is the same molecule in a 5 litre jerry.
- [Oven Pride Complete Oven Cleaning System](https://dupestack.co.uk/teardowns/oven-pride-complete-oven-cleaner-dupe/): The bag is theatre. The gel is dilute sodium hydroxide. Caustic soda pearls at about 40 g/L make the same 4% attack on burnt fats. Corrosive — this is not a toy, and it is not a lemon-scented miracle.
- [Levington Tomorite Concentrated Tomato Food](https://dupestack.co.uk/teardowns/levington-tomorite-concentrated-tomato-food-dupe/): A dilute high-potash bottle with a pinch of kelp. Soluble tomato feed around 4-4-8 (or 6-5-12) at 2 g/L is the same three numbers without the green dye. This is not Miracle-Gro 20-20-20 — tomatoes want potassium.
- [Westland Epsom Salts](https://dupestack.co.uk/teardowns/westland-epsom-salts-magnesium-sulphate-dupe/): The garden-centre box is agricultural Epsom salts with a picture of a tomato. MgSO4·7H2O is a commodity desiccant and bath salt. Buy it by the 5 kg bag, not 1.5 kg at a time. This is not BetterYou magnesium oil (that is chloride).
- [Westland Sulphate of Ammonia](https://dupestack.co.uk/teardowns/westland-sulphate-of-ammonia-lawn-feed-dupe/): 21% nitrogen as ammonium sulphate. The cardboard box is a portioned sack of a fertiliser merchants sell in 25 kg lots. It greens grass. It also acidifies — do not pile it on chalk-hating stone paths.
- [Doff Slug & Snail Killer Pellets](https://dupestack.co.uk/teardowns/doff-slug-snail-killer-ferric-phosphate-dupe/): Metaldehyde is gone. What remains is ~1% ferric phosphate in a cereal pellet. The 800 g tub is a small bag of the same bait sold in 2–5 kg buckets to allotmenteers. You are paying for the child-resistant lid.
- [Fi-Clor Superfast Shock Chlorine Granules](https://dupestack.co.uk/teardowns/ficlor-superfast-calcium-hypochlorite-shock-dupe/): This is not TCCA and it is not bottle bleach. Cal-hypo is the same oxidiser sold to commercial pools in 5–10 kg kegs. A 2.5 kg spa tub is a small pour from that keg.
- [Clearwater Non-Chlorine Shock / Spa Oxidiser](https://dupestack.co.uk/teardowns/clearwater-non-chlorine-shock-mps-dupe/): ‘Non-chlorine shock’ is Oxone-type MPS — the same triple salt used in bulk oxidisers. A 1 kg spa tub is a markup on a 5 kg bucket. It oxidises organics; it is not a sanitiser on its own.
- [Clearwater Bromine Tablets](https://dupestack.co.uk/teardowns/clearwater-bromine-tablets-bcdmh-dupe/): Spa bromine tablets are BCDMH. The 1 kg tub is the same 20 g pucks sold in 5 kg tubs to holiday-park plant rooms. You still need a floater and a test kit.
- [Viral candy brands Daily Collagen Beauty Gummies](https://dupestack.co.uk/teardowns/viral-collagen-peptides-gummies-dupe/): A month of gummies is often ~75 g of collagen in a lot of sugar. 400 g of unflavoured peptides is the same hydrolysed protein at a few pence a serving. Food supplement comparison, not a cosmetic medicine.
- [BetterYou DLux 3000 Vitamin D Oral Spray](https://dupestack.co.uk/teardowns/betteryou-dlux-vitamin-d3-oral-spray-dupe/): The spray is cholecalciferol in oil with mint. A year’s 4,000 IU capsules is the same vitamin D without the oral-spray story. Food supplement comparison, not a medicine — follow NHS guidance on dose.
- [Boots / first-aid brands Hydrogen Peroxide Solution 3%](https://dupestack.co.uk/teardowns/boots-hydrogen-peroxide-3-percent-dupe/): 3% is 10-volume peroxide. Hair-developer 12% (40-volume) diluted 1:3 is the same 3% oxidiser in litres, not 200 ml pharmacy bottles. Do not drink it. Do not use 12% on skin undiluted.
- [Oust All Purpose Descaler Sachets](https://dupestack.co.uk/teardowns/oust-all-purpose-descaler-lactic-acid-dupe/): This is not citric acid and it is not sulfamic. The sachet is 70–90% lactic acid — the same food-industry acid sold in 1 litre jerry cans. One 25 ml pour descale a kettle; three sachets is a tiny pour from that jerry.
- [Fernox DS-3 Cleaner Descaler](https://dupestack.co.uk/teardowns/fernox-ds3-sulphamic-acid-descaler-dupe/): Sulfamic acid is the plumber’s descaler: a solid, less fuming than hydrochloric, stronger on scale than citric. The 500 g Fernox tub is a labelled bag of the same 99% crystals sold in 1 kg jars for a kettle-and-combi DIY stack.
- [Jeyes Kleen Off Ammonia Multi-Purpose Cleaner](https://dupestack.co.uk/teardowns/jeyes-kleen-off-ammonia-household-cleaner-dupe/): UK Windolene is no longer ammonia. Kleen Off still is: a ~9–10% ammonium hydroxide solution in a 500 ml bottle. A 5 litre jerry of 10% household ammonia is the same molecule. Never mix it with bleach. The catch is the fumes, not a secret surfactant.
- [Carex Complete Hand Sanitiser](https://dupestack.co.uk/teardowns/carex-complete-hand-sanitiser-ipa-dupe/): WHO-style sanitiser is 70–80% alcohol plus a drop of glycerin. The branded gel is that mix with a pump. 99% isopropyl alcohol diluted 7:3 with water is the same working strength in litres, not 500 ml pumps. Flammable — not a drink, not a medicine.
- [Jenolite Rust Remover Gel](https://dupestack.co.uk/teardowns/jenolite-phosphoric-rust-remover-dupe/): This is not oxalic (that is HG masonry rust) and it is not hydrochloric (Mortar Clen). Phosphoric acid etches rust to iron phosphate. Technical 81% phosphoric diluted to about 25% is the same attack without the gel tax. Keep it off limestone.
- [Vitax Sequestered Iron Plant Tonic](https://dupestack.co.uk/teardowns/vitax-sequestered-iron-plant-tonic-dupe/): This is not ferrous sulphate (that is Evergreen moss killer) and it will not blacken a pale patio the same way. EDDHA/EDTA iron stays available on chalky soil. Four 20 g sachets are a tiny bag of the 6% chelate sold in 250 g tubs to nurseries.
- [Westland Nitrate of Potash](https://dupestack.co.uk/teardowns/westland-nitrate-of-potash-tomato-feed-dupe/): This is not Tomorite (a dilute 4-3-8 bottle) and it is not 20-20-20. Potassium nitrate is 13-0-46: nitrogen plus potash in one salt. The garden-centre 1.5 kg box is agricultural KNO3 with a tomato on the front. Buy it in 5 kg.
- [HTH / Fi-Clor Rapidfloc / Granular Floc](https://dupestack.co.uk/teardowns/hth-ficlor-granular-floc-aluminium-sulphate-dupe/): Floc is alum. Aluminium sulphate is a water-works coagulant sold in 5–25 kg sacks. A 1 kg spa tub is a labelled scoop from that sack. Not a sand-filter magic potion, and not polyquat. Vacuum to waste after it drops.
- [Fi-Clor / Swimfresh Chlorine / Bromine Reducer](https://dupestack.co.uk/teardowns/ficlor-chlorine-bromine-reducer-thiosulphate-dupe/): The spa-shop ‘chlorine reducer’ is photographer’s hypo: sodium thiosulphate. A 2.5 kg tub is a small bag of the 5 kg photo/pool salt. Dose from a test kit. Too much and you will have no sanitiser left.
- [Viral candy brands / Hairburst-style Biotin Hair, Skin & Nails Gummies](https://dupestack.co.uk/teardowns/viral-biotin-hair-gummies-dupe/): A month of gummies is a few milligrams of biotin in sugar. NHS-style NRV is 50 µg; many gummies dump 5,000–10,000 µg because it is cheap and water-soluble. A year of 1,000 µg tablets is the same vitamin without the sweet. Food supplement comparison, not minoxidil and not a medicine.
- [Viral wellness candy Ashwagandha Stress & Sleep Gummies](https://dupestack.co.uk/teardowns/viral-ashwagandha-gummies-ksm66-dupe/): The gummy is a under-dosed withanolide extract in sugar. Standardised root extract (often 5% withanolides, or a named KSM-66 capsule) is the same plant without the sweet. Food supplement comparison, not a medicine, not a substitute for prescribed anxiety treatment.
- [Viral kids-and-adult candy Omega-3 DHA Gummies](https://dupestack.co.uk/teardowns/viral-omega3-fish-oil-gummies-dupe/): Gummy omega-3 is a few hundred milligrams of oil in a lot of sugar, often well below a 1,000 mg fish-oil capsule. The bulk equivalent is a bottle of 1,000 mg EPA/DHA capsules, not another sweet. Food supplement comparison, not a medicine.

## Optional
- Canonical articles live under /teardowns/{slug}/. /compare/{slug}/ is a noindex alias that canonicalises to the teardown.
- Sitemap: https://dupestack.co.uk/sitemap.xml