Glossary

Cutting damaged and/or chemically treated hair to regain its natural texture.

English term meaning "care" or "conditioner" encompassing all hair products with or without rinsing that treat the hair.

Diminutive of the English term "conditioner-wash" meaning "cleansing treatment"; it involves washing the hair with a conditioner or cleansing treatment instead of a traditional shampoo, which has stronger surfactants.

Deep cleaning technique for hair and scalp. The goal is to remove all product residues or dirt from the lengths and to purify the scalp.

Number of hair follicles (roots) present on our scalp. The closer the hairs are to each other, the higher the density of our hair, and vice versa.

Diameter of a hair. You can easily compare it to a sewing thread: if your hair is finer than the latter, your hair is simply "fine," if your hair is thicker, then it is "thick."

English term meaning "leave-in care." A styling product generally used to hydrate and/or define curls at the end of a hair care routine and during the following days.

Hair's ability to absorb and retain moisture. This is similar to the more or less strong opening of the hair scales.

• High porosity: the scales are very open, water easily enters the hair fiber but immediately exits. Moisture does not stay.

Tips:
- Use protein treatments to strengthen the hair;
- Prefer cold water in the shower to close the scales;
- Seal in moisture with an oily substance (oil) to prevent water from escaping.

• Normal porosity: good balance of the hair that absorbs and retains moisture properly.
  
• Low porosity: the scales are closed, water has difficulty entering the hair fiber. The same goes for treatments applied, which can quickly give a heavy hair sensation.

Tips:
- Prefer fluid/light treatments that will not weigh down your hair;
- Use warm water at the beginning of your routine to open the scales;
- Occasionally use a clarifying (or detox) shampoo to remove excess hair products that remain on the surface of your hair;
- It is recommended to do oil baths once every 2 weeks, for example, using light oils that will penetrate more easily.

Diminutive of the English term "pre-shampoo" meaning "before shampoo"; it is therefore a treatment done before shampooing.

Styling technique used to encourage the formation of bouncy curls by lifting the hair from the tips to the roots with your hands.

English term meaning "shrinkage" and refers to the natural shrinking of textured hair when exposed to moisture (the phenomenon of the mouth tightening).

The process of stopping treatments that alter the hair (chemical products, relaxing, straightening, excessive heat) and gradually returning to its natural texture through the use of healthy products.

The emblematic express routine of the brand TROIS FOR ALL consists of enhancing your hair in just a maximum of 3 steps and with 3 customizable products.

• Type 1: Straight
• Type 2: Wavy
• Type 3: Curly
• Type 4: Coily

Each hair type is divided into 3 subcategories a, b, and c based on its thickness and curl type.

Knowing your hair type can be useful for defining an appropriate hair care routine. Curly hair will require more hydration and nutrition than straight hair. A bit of science to explain it simply: the natural sebum secreted by the scalp has a harder time traveling down the hair fiber the tighter the curl is. However, sebum protects the hair cuticles and directly contributes to maintaining their hydration. The lengths of curly and coily hair will thus naturally tend to be drier than straight hair and require a higher level of care.

English term meaning "Wash and go." It is a misuse of language used to refer to a minimalist routine consisting of washing the hair, moisturizing it with a leave-in treatment, and letting it dry naturally, without any particular styling or grooming.

English term meaning "Wash Day" which simply refers to the day of the complete hair care routine where we wash and deeply treat our hair. The routine from A to Z can be lengthy and may include, for example: prepoo, washing, detangling, treatment, styling, or defining.