About this guide
A no-nonsense answer to a dumb question I kept having: which of these bottles and boxes do I actually need, and which are a waste?
How to read it
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Best for / Avoid on
Every product lists the loads it's great for and the fabrics it'll quietly ruin. If you only read two lines, read those.
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Confidence badge
"High / medium / low confidence" tells you how solid the evidence is. Low usually means "sounds right, but nobody's run a proper test."
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Contested flags
When a popular claim doesn't hold up, it's called out instead of quietly repeated.
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Sources
Claims link out to the real thing — research papers, safety bodies, independent tests — not brand marketing. Source quality is badged so you can tell them apart.
Source quality:
Peer-reviewed
Standards / Govt
Independent test
Industry / Manufacturer
Reference
A few honest caveats
- Some answers are "this is how the chemistry works" rather than a head-to-head lab test. Those are marked lower-confidence.
- A lot of laundry "studies" are run by the companies selling the stuff. Where that's the case, it's flagged, not trusted blindly.
- This is a friendly reference, not safety advice. Your garment care label always wins — and seriously, never mix bleach with ammonia or acids like vinegar.
Part of fun.szil.fun.