Biosilk Silk Therapy Original Serum. A light leave-in hair care with pure silk. Silk Therapy protects the hair and keeps it in optimal shape. Directions for use: Apply 5 to 10 drops in the palms and distribute evenly throughout the hair and possibly on the skin. Repeat if necessary. The result is amazing. Silk Therapy can be used on both wet and dry hair. Suitable for daily use. BioSilk Serum Silk Therapy Original Hair Lotion & Oil" BioSilk Serum BioSilk Original Hair Lotion & Oil Brand: BioSilk BioSilk Serum Silk Therapy Original