Try something like the Fable & Mane HoliRoots Hair Oil, a pre-shampoo treatment that mixes castor oil with ashwagandha, an antioxidant-rich berry called amla, and a plant-root blend designed to strengthen strands and soothe the scalp. You can also try the Carol’s Daughter Goddess Strength 7 Oil Blend Hair & Scalp Oil, which blends castor oil with black cumin seed and six other nourishing oils to hydrate the scalp and treat breakage.

Avocado Oil

Avocado oil contains fatty acids and vitamin E, which can help moisturize and condition the hair. While there aren’t studies showing avocado oil directly stimulates hair growth, it may help create a healthy environment for hair to thrive. “By helping support a healthy scalp environment and strengthen the hair shaft, it may help hair appear fuller and healthier while minimizing breakage that can contribute to the appearance of thinning,” Dr. Garshick agrees.

She likes Kiehl’s Magic Elixir, a pre-shampoo treatment that combines avocado oil with rosemary leaf and safflower oil to moisturize the scalp and alleviate dryness. “It is especially useful for those looking to incorporate scalp care into their routine,” she adds, “while improving hair manageability, smoothness, and shine without adding another leave-in product.” You can also try the Grow Good Everything Serum, which has a nourishing mix of oils (avocado, coconut, sunflower seed, and more) to seal the cuticle and prevent split ends and breakage.

Argan Oil

Argan oil is extremely nourishing for hair; it contains vitamin E, fatty acids, and antioxidants that protect hair from environmental aggressors that cause damage, keeping hair feeling smooth and hydrated. Dr. Garshick says that although it hasn’t been proven to stimulate hair growth, it can improve hair softness, reduce frizz, and minimize breakage, which helps hair retain length and appear fuller.