Rosemary Oil: According to Small, rosemary oil may be as effective as minoxidil in promoting hair growth and preventing hair loss, with some studies even showing better results in reducing scalp itching. Rosemary oil contains compounds like carnosic acid and eucalyptol, which can stimulate hair follicles, improve blood circulation, and combat DHT—DHT, a byproduct of testosterone, is produced by both men and women. When DHT levels are high, the hormone can shrink or suffocate hair follicles, leading to thinning hair and, in some cases, hair loss. By helping to counteract DHT’s effects, rosemary oil may support healthier, fuller hair growth.
Fractionated Coconut Oil: Per Small, this is an excellent carrier oil for active ingredients. As a moisturizer, it is lightweight, fast-absorbing, and non-greasy, making it ideal for various skin types, including sensitive skin.
Pumpkin Seed Oil and Saw Palmetto Oil: According to Dr. Camp, these oils may help with hair loss due to their antiandrogenic and anti–5α-reductase properties. This means they may inhibit the enzyme responsible for converting testosterone into DHT, a key factor in hair thinning and loss.
Meadowfoam Seed Oil or Safflower Seed Oil: Small says that both of these oils are moisturizing, nourishing, and beneficial for maintaining a balanced scalp. “While these ingredients may not directly stimulate hair growth, they are unlikely to clog follicles or hinder it. When choosing a scalp oil, the carrier oil makes up the majority of the formula and is just as important as the active ingredients.”
Jojoba or Chia Seed Oil: Small explains that both of these contain niacinamide, a form of vitamin B3, which provides several benefits for the scalp, including reducing inflammation, balancing oil production, improving hydration, and creating a healthier environment for hair growth. Specifically, niacinamide promotes blood circulation and supports keratin production, which is essential for strong, thick hair that can grow longer.
Argan Oil and Mineral Oils: Dr. Camp says these are often regarded as effective hair oils that help fortify hair by improving moisture retention, strengthening strands, and delivering nutrients and antioxidants that protect hair follicle cells from oxidative stress.
Tea Tree Oil: If dandruff or an itchy scalp is your main concern, Dr. Camp recommends tea tree oil, which is known for its anti-inflammatory, antifungal, and antibacterial properties.
