Pilopeptan woman hair repair serum is an oil-free serum that repairs hair fibre, as it protects against dryness and dehydration. it also prevents hair from getting curly even with cool and rainy weather. pilopeptan woman hair repair serum has a uvb sunscreen that protects hair from the harmful effect of sun, preventing decolouration and drying off.use: apply gently with fingertips on dry or wet hair and on damaged areas.