The tecSture Encyclopedia · Smoothing · The keratin and protein family
The keratin and protein family
Every member shares the same DNA, born from Brazil's escova progressiva: protein plus a fixing agent, ironed into the hair.
What separates them is chemistry generation (aldehyde classics versus modern acid systems), protocol (72-hour rules versus rinse-and-go), and naming — the same service wears different clothes in every country. This family owns the global smoothing market because it delivers the most wanted result in hair: your hair, but behaving.
Level of change
The Zoltan tecSture Scale runs from 1, straight, to 10, the tightest pattern — one ladder, ten levels. What a treatment does is move you a number of rungs. That distance is the job, and it is what the work should be priced on: the level of change, not the bottle.
Nothing in this family breaks a bond. At most it moves the pattern one or two levels, and the hair botox end of it moves none at all. What you are buying here is frizz and behaviour, not shape.
One or two rungs at the top of the family, none at the bottom. Anyone promising more is selling you something else.
Work out your own code first
Before any of this is a booking, it is a reading: what your hair is, what it has already had, and how much change it can carry. The Zoltan tecSture Scale gives you one code for all three.
The treatments in this family
The keratin treatment guide — the complete honest guide to the core service, its chemistry, hair-type match, aftercare and everything that can go wrong.
Formaldehyde, honestly — the chemical that gave this whole category its bad name: what it is, what it did, and how to read a label.
The Brazilian Blowout story — the American brand that named the category, its same-day protocol, and the formaldehyde story every client deserves to know.
The Brazilian blow dry explained — what British menus actually mean, the "permanent blow dry" naming trap, and how to book one wisely in the UK.
Where it all began: the escova progressiva.
Names and native script
- Brazil
- progressiva; tratamento de queratina
- USA and UK
- Keratin treatmentDOWN, keratin blow dry, permanent blow dry
- Spain and Latin America
- tratamiento de keratina; alisado de keratina
- France
- lissage à la kératine; lissage brésilien
- Italy
- trattamento alla cheratina; lisciatura brasiliana
- Germany
- Keratin-Glättung
- Hungary
- keratinos hajegyenesítés
- India
- Smoothening — the same tier under another name
How to choose within the family
Want the longest track record and widest salon choice: generic keratin. Want zero lifestyle rules and same-day washing: the Blowout protocol or a modern acid system. In the UK and unsure what you were offered: read the Brazilian blow dry page first — the name tells you almost nothing until you ask which system is in the bottle. Damaged or bleached hair leaning gentler: consider hair botox instead; wanting more straighteningDOWN power: nanoplastia.
And one fact to carry into all of it: the keratin itself is not the active ingredient in any of these. It is the conditioner and the marketing; the actives do the work. The keratin treatment page explains it properly — read that before you pay extra for the word.
Family rules that never change
Sulfate-free and salt-free washing, colour before not after, strand tests on bleached hair, and the label decoder: formaldehyde hides behind methylene glycol, formalin and methanal on ingredient lists. A salon that can name its system instantly is a salon you can sit in.
Zoltan's note
I have been doing these since 2004, and I was doing the permanent Japanese kind five years before that — Yuko Yamashita trained me herself in 1999. So I did not arrive at this family because it was easy. I arrived because most people do not need the heavy thing.
Everything in here buys you the same thing: frizz gone, hair that behaves, mornings back. What separates them is how much chemistry is involved and how long it lasts. None of them will make curly hair straight, and anyone telling you otherwise is selling the wrong tier.
The honest ranking is boring: the gentler it is, the less it lasts. Pick by what your hair can carry, not by what the name promises.
Questions
Are all keratin treatments the same?
No — one family, several chemistries. Classic aldehyde systems smooth hardest with the strictest rules and the safety debate; modern acid and amino systems trade a little power for gentleness and same-day freedom. The name on the menu matters less than the ingredient list behind it.
Which keratin treatment lasts longest?
Classic full-strength systems reach five months; rinse-and-go protocols like the Blowout run closer to three. Aftercare moves every version by weeks in either direction — salt-free washing, weekly masks and swim discipline are worth more than the brand choice.
Is the keratin family safe?
Modern formol-free systems in ventilated salons are considered low risk for most people. The family's controversy belongs to formaldehyde-releasing formulas, which regulators continue squeezing out worldwide. Every treatment page in this family includes the full label decoder — read it before you book.