News

Hair serum: before or after the flat iron? The right way to use it
A serum is the smallest bottle in the bathroom and the one that makes the biggest visible difference – when it is used at the right moment. Before the heat: protection On towel-dried hair, work 2 to 4 drops of Therapy Serum through the lengths before the blow-dryer or the flat iron. The serum coats the fibre, limits water loss and protects against heat. This is the most important application. After styling: finish and shine On dry hair, one drop warmed between the palms, smoothed over the lengths and ends,... Read more...
Repair mask for damaged hair: how to choose it and how to use it
Dry ends, breakage when brushing, dull colour, frizz that nothing tames: these are the signs of a damaged fibre. A good repair mask is the fastest way to turn it around – if you choose it well and use it well. Why hair gets damaged Bleaching, colouring, heat tools, sun, sea, hard water and aggressive shampoos all open the cuticle and break the internal bonds of the hair. The fibre loses water, lipids and strength. What a real repair mask must do Rebuild the structure, not only coat it with... Read more...
Sulfate-free shampoo: why switch, and what changes for your hair
“Sulfate-free” is written on more and more bottles. Marketing, or real benefit? Here is a clear answer. What are sulfates? Sodium lauryl sulfate (SLS) and sodium laureth sulfate (SLES) are the surfactants that make a shampoo foam a lot and clean very strongly. They are cheap and effective – and that is exactly the problem for fragile hair: they also remove the natural lipids of the fibre and the scalp. Who should switch? Coloured or bleached hair: colour fades faster with sulfates. Smoothed hair: a smoothing treatment is washed out... Read more...
How to make a smoothing treatment last: the shampoo, mask and serum routine
A professional smoothing treatment is an investment. Whether it lasts six weeks or four months depends mostly on what you do at home. Here are the five habits that make the difference. 1. Wash with a sulfate-free shampoo Sulfates (SLS, SLES) are strong detergents. They strip the smoothing agents from the fibre wash after wash. A gentle, sulfate-free shampoo such as Therapy Shampoo cleanses without undoing the treatment. Two or three washes a week are enough. 2. Use a repair mask once a week Smoothed hair needs nourishment to stay... Read more...
Formaldehyde-free smoothing: what you need to know before booking a salon treatment
“Brazilian smoothing”, “keratin treatment”, “hair botox”… the names change, but one question comes back every time: does it contain formaldehyde? Here is what you should know before you book. What formaldehyde does in a smoothing treatment Formaldehyde (and the ingredients that release it when heated, such as methylene glycol or glyoxylic-acid blends used at very high temperature) is used to “fix” the hair in a straight position. It works, but it has a cost: fumes during application, irritated eyes and throat for the client and the hairdresser, and a hair... Read more...