A concentrated scalp serum from a French hair-care specialist
In Haircare Boost & Scalp Serum is a leave-on serum made to be applied directly to the scalp. The 30ml bottle is a small, concentrated format for a routine focused on scalp comfort and the look of stronger, fuller hair. It comes from In Haircare, a French brand that concentrates on hair and scalp.
How it works
It is applied to the scalp rather than the lengths, so it sits where your hair starts. Being a serum, it is used in small amounts and left on.
Who it suits
- People who want a dedicated scalp step in their hair routine
- Hair that looks thinner or tired
- Anyone using In Haircare shampoos who wants a leave-on to go with them
Worth knowing before you buy: We only know the basics of this formula, so check the box for the full ingredient list and any warnings before use. It is a cosmetic scalp product, not a treatment for a medical hair-loss condition.
Complete the routine

In Haircare Exfoliating Gel
A scalp exfoliating step to go before a serum.
Shop →
In Haircare Fortifying Care Oil
A pre-shampoo oil for the lengths from the same brand.
Shop →Characteristics
- Texture: serum
- Area: scalp
- When to apply: on clean scalp, leave-on
- Size: 30ml (1.01fl oz)
- EAN: 3770018820101
How to use
Apply to clean, dry or towel-dried scalp, parting the hair in sections. Massage gently with the fingertips and do not rinse. Follow the directions on the box.
