It should be applied once a day, every day directly to the scalp or areas of concern. Since you’re focusing application on the scalp, it can be used when hair is dry or when hair is damp and towel-dried after a shower.

With daily use, you can see a more nourished scalp and visibly thicker, stronger-feeling, healthier hair in 90 days. You may also see less breakage and more density.

No, our hair serum was formulated to provide direct scalp support for visibly thicker hair. It complements Nutrafol's Hair Growth Nutraceuticals that target key root causes of hair thinning from within.

This is a bit different for everyone. One bottle typically lasts 1-3 months. If you’re applying it to the entire scalp, it will last closer to one month. When using the serum just in specific areas of concern, the bottle will last an average of 3 months.

No, our hair serum is formulated to be used on the scalp specifically. It has not been tested for safety or efficacy on eyebrows or eyelashes and should not be used in those areas.

All of our scalp microbiome products, including Hair Serum, Shampoo, Conditioner, and Scalp Mask are suitable for use by pregnant and breastfeeding individuals when used as intended. If you have any questions if these products are right for you, we recommend consulting with a trusted healthcare provider before adding Nutrafol products to your hair wellness routine.

Our hair serum is vegan. It contains no animal product and was not tested on animals. Our tests are performed only on human volunteers!