16 Hair Growth Oils That Will Totally Transform Your Tresses

If your hair looks a bit thin or you just want to boost your growth, try this treatment from The Ordinary. Apply each night before bed and massage your scalp for the best results. No need to wash out!

Sephora star rating: 3.9/5 stars

Our expert says: “In addition to peptides, this contains antioxidants, vitamins, humectants, and conditioners to nourish the hair and promote overall scalp and hair health. This serum also contains castor oil, which may help to promote healthier and stronger hair as it uses ricinoleic acid, a type of fatty acid, to boost circulation in the scalp. Caffeine, also included, has been shown to help with hair growth in laboratory settings, but is likely helping by supporting healthy hair through antioxidant benefits.” — Dr. Garshick