This intensive hair mask enriches your hair with keratin for increased strength and up to 92% less hair breakage. It smoothens hair fibers and combats frizz. Syoss Keratin Boost Intensive Hair Mask is developed by experts and inspired by Japanese beauty principles; it offers immediate results, deep care, and nourishment for dry and damaged hair.

Its highly concentrated formula combines Asian-inspired ingredients with five times more amino acids, the building blocks of hair, to provide extra effectiveness for strong and healthy-looking hair. 

Characteristics:

• versatile 4-in-1 use a highly concentrated formula
• combines Asian-inspired ingredients and increased amount of amino acids
• intensive hair mask for stronger and less brittle hair
• smoothes hair fibers and fights frizz

Ingredients:

• Asian-inspired ingredients with an increased amount of amino acids
• blue lotus extract – inspired by Japanese beauty 
• keratin
• amino acids

How to apply:
Pre-shampoo treatment: apply gently to wet or dry hair, then rinse. Use it regularly.

Conditioner: apply gently to wet hair after shampooing, then rinse. Use it regularly.

Deep-care mask: apply gently to wet hair after washing and wait for 2–3 minutes. Then rinse. Use 2–3 times a week.

Overnight mask: apply a small amount to dry or towel-dried hair. Leave it overnight and rinse the next day. Use 1–2 times a week.