About DupeStack
Deconstruct the brand. Buy the molecule.
DupeStack is a UK consumer-advocacy site at dupestack.co.uk. We take overpriced, heavily marketed household, garden, patio, pool and wellness products and strip them back to the unbranded chemicals that actually do the work — with mixing maths, cost-per-litre comparisons, and COSHH-minded handling notes.
Who builds it
DupeStack is built by Phil in Northern Ireland. This site is the chemistry, not a biography — more at philstone.co.uk.
Who it is for
Householders, gardeners and anyone who would rather weigh a kilogram of ferrous sulphate than pay for a television advert in a brightly coloured box. It is educational first. We are not a substitute for a Safety Data Sheet, a trade chemist, or the product manufacturer.
What you can do here
- Browse product teardowns by category.
- Compare a branded pack with its bulk active (CAS number, concentration, cost).
- Run the dilution calculator for a sprayer volume or a measured surface.
- Open a DIY stack (chemical, applicator, PPE) via affiliate links.
How we make money
Some outbound product links are Amazon UK Associates links (tracking ID dupestack-21). If you buy through them, we may earn a commission. That does not change the chemistry or the savings maths. See our affiliate disclosure.
Questions: contact us.