How long between bleaching sessions?

At least three to four weeks, and only after rebuilding. The interval is not bureaucracy: it is the time the fibre needs to recover part of what it lost.

Does bleaching cause hair loss?

Shedding itself comes from the follicle, not the shaft. But bleaching irritates the scalp, and a frequently inflamed scalp does affect growth. That is why we suggest alternating with scalp therapy for anyone who lightens regularly.

Can I bleach at home and only tone at the salon?

You can, but it is the origin of most breakage cases we see. Home bleaching is applied at the same timing and volume across the whole head, and hair is not the same from root to end.

Going blonde without breaking your hair

What bleaching does to hair, why it sometimes takes more than one session, and how to keep blonde from going brassy.

Reviewed August 2026 · Nelma Faleiro

Bleaching means opening the cuticle and removing pigment from inside the strand. There is no bleaching without structural change — there is controlled bleaching, done within what that hair can take. The whole craft lies in knowing that limit before you start.

Why it sometimes takes more than one session

Because each bleaching pass has a safe ceiling. Virgin dark hair needs to lift several levels to reach pale blonde, and forcing it all at once is what produces hair that stretches and does not spring back — a loss of elasticity. Doing it in two or three stages, weeks apart with rebuilding in between, reaches the same place with the hair intact.

The test strand is not a formality

It is the only way to know what your hair can take today. A history of keratin treatments, relaxers, henna or box dye completely changes how the strand responds, and nobody can read that by eye. A salon that bleaches hair with an unknown history without testing is gambling with your hair, not theirs.

Keeping blonde between visits

Brassiness appears because bleaching exposes warm underlying pigment, and water, sun and pollution accelerate it. Toning neutralises — but overused it goes grey and dries the hair. The practical rule is once a week, alternating with a gentle shampoo, plus hydration and rebuilding. Blonde is maintenance; if you do not want maintenance, choose another colour.