Zoltan Hair Texture Blog
Safety & rules
Formaldehyde, tests and the rules that keep hair on heads.
Safety & rules posts
- Hair Straightening Treatments Explained: Keratin, Brazilian Blow Dry, Japanese, Nanoplasty and Hair Botox (UK Guide)Every salon hair straightening treatment in the UK, in plain English: what it does, how long it lasts, what can go wrong. From a Mayfair texture specialist: perming since 1991, straightening since 1999.
- Keratin vs Japanese Straightening vs Brazilian Blow Dry: Which One, How Long It Lasts, What It CostsKeratin, Brazilian blow dry or Japanese straightening? What each one does to curls, how long it lasts, UK prices, and which hair should avoid which. Straight answers from Mayfair.
- Keratin Treatment Ruined My Hair: What's Happened and What Can Be FixedHair damaged after keratin or a straightening gone wrong? What's really happened, what you can fix at home, what needs a correction specialist, and when cutting is the honest answer.
- Is Keratin Treatment Safe? Formaldehyde, Glyoxylic Acid and the UK Rules in 2026Is keratin bad for your hair or your health? What UK law says about formaldehyde, the glyoxylic acid kidney reports, and the questions to ask before you book.
- Formaldehyde testing in salonsFormaldehyde is a gas and it can be easily measured in the salon air with a simple test for 20minutes during the treatment process.
Browse by topic
- Behind the chairSalon life, launches and the moments that changed how I work.8 posts →
- Trends & dataWhat people are actually booking, and what's just marketing.7 posts →
- Tools & ironsStraighteners, heat and kit, tested at the chair.4 posts →
- Safety & rulesFormaldehyde, tests and the rules that keep hair on heads.5 posts →
- Mayfair historyA square mile of hairdressing, and where it all came from.7 posts →
- Texture ReviewTwice a year: what's coming to London, in texture.2 editions →
- All postsEverything, newest first.31 posts →
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