Aftercare for a Brazilian blowout or keratin treatment

A Brazilian blowout or a keratin treatment can transform your hair: less frizz, more shine and a much quicker routine in the morning. But almost all of the result depends on what you do in the days that follow. These are the guidelines I give my clients at BellaDona, on Calle Aribau 271 (Barcelona).

What happens to the hair after the treatment

During the process, the product and the heat seal the cuticle and deposit protein and lipids that fill the hair fibre. The hair ends up smoother, with less volume and more shine. It is worth being clear that this is not a permanent change: it is a layer that gradually wears off with washing and heat.

The first 72 hours

This is the phase in which the treatment sets, and the one that most affects the final result. During that time:

• Do not wet your hair. No long steamy showers, no pool, no beach.
• Do not tie it back with bands, clips or braids that leave a mark.
• Do not use straighteners or a hairdryer. No curling tongs either.
• Do not sleep with wet hair or with it pressed against the pillow.

Depending on the product and your hair type, the waiting time may be a little longer. Respect it: if you wash your hair too early, the effect is noticeably shortened.

Washing and products

• Sulphate-free shampoo (and, ideally, salt-free). Sulphates are what strip the treatment fastest.
• Lukewarm water, not hot: very hot water opens the cuticle.
• Conditioner from mid-lengths to ends, avoiding the roots.
• A mask once a week to keep the fibre hydrated.
• Avoid clarifying or strong anti-dandruff shampoos, which clean too aggressively.

Heat: how not to undo the work

• Always use heat protection, before straighteners or a hairdryer.
• Keep straighteners at 180 °C or below. More is not needed to smooth already-treated hair.
• Do not run the straighteners over the same section several times. One pass is usually enough.
• Use the hairdryer on a warm setting and at a sensible distance.

The rule is simple: every time you use heat without protection, you lose part of the treatment you have just paid for.

How long it lasts and when to repeat

It usually lasts between 2 and 4 months, depending on the product, your hair type and your routine. When you notice the frizz coming back and styling becoming harder work, it is time to consider repeating it. It is best not to do it too soon: the fibre needs to recover between treatments.

Brazilian blowout, keratin or both?

In the consultation I assess your hair and explain which option makes most sense in your case. A Brazilian blowout usually gives a smoother, longer-lasting effect; keratin reduces frizz and brings back shine with a more natural finish. There is no need to choose blindly: we decide by looking at your hair and talking about what you want to achieve. You can see the options in the services section.