Part of the 1-2-3 Retention System. This No3 Serum is a leave-in stimulant that will bring blood flow to the scalp and increase oxygen to feed the hair in the follicle.
How To Use: Apply 5-10 drops to the scalp. Your scalp will appear red for a short time. This the result of increased blood flow.
For use with No1 Cleanser & No2 Hydrating Conditioner.
Extends the life of your hair while rehydrating, nourishing and rejuvenating your scalp. With a combination of peptides, powerful UV filters, and certified organic extracts, our Retention System is the perfect healthy hair care line for you.