If you’ve been dreaming of thicker, stronger, and healthier hair, experts say that the key might start at the scalp. A well-nourished scalp creates the ideal environment for hair follicles to thrive, which can lead to improved growth, shine, and resilience. While diet, lifestyle, and genetics all play a role, using the right hair oils can make a noticeable difference. With the right ingredients, you can target dryness, inflammation, and weak follicles while giving your hair the nutrients it needs to grow stronger from the root up. Here are two hair oils dermatologists and hair experts recommend for maximum impact.
1. Castor Oil
“Castor oil is a popular natural remedy for hair growth,” says Dr. Mitchel P. Goldman, MD, Ph.D., board-certified dermatologist and cosmetic dermatology expert. “It contains ricinoleic acid, which has anti-inflammatory and antimicrobial properties that can help to improve scalp health and promote hair growth.”
In addition to its unique fatty acid profile, castor oil is rich in omega-9 fatty acids, which are essential for healthy hair and skin. However, Goldman emphasizes that not all castor oils are created equal. “When it comes to using castor oil, there are a few things to keep in mind. Firstly, it's important to choose a high-quality castor oil that is free of additives or impurities. Secondly, use it sparingly — a little bit goes a long way. You can apply a small amount to your scalp, massage it in, and leave it on for 30 minutes to several hours before washing it.”
This simple routine can help reduce scalp inflammation, strengthen hair follicles, and support healthier growth over time.

2. Peppermint Oil
Another powerhouse for scalp and hair health is peppermint oil. Ghanima Abdullah, hair expert and cosmetologist at The Right Hairstyles, explains that peppermint oil can be especially effective when combined with rosemary oil. “Using this along with rosemary oil can stimulate the hair follicles, and hydrolyzed protein and collagen can help fortify the hair shaft against damage and breakage,” she says.
For those new to scalp treatments, haircare professionals recommend starting with oils formulated for this purpose.
As Abdullah notes, “Particularly those designed as scalp treatment serums can be beneficial for thin, fine hair. These oils, like many rosemary and peppermint-infused options, are formulated to promote scalp health, nourish the hair follicles, and stimulate blood circulation in the scalp.”
Peppermint oil’s invigorating effect also provides a refreshing tingle while massaging the scalp, helping to wake up dormant follicles and support overall scalp health.
Expert Tips for Using Hair Oils
For both castor and peppermint oils, moderation and consistency are key. Apply a small amount, focus on massaging it gently into your scalp, and allow time for absorption before washing. Combining these oils with a balanced haircare routine — including a gentle shampoo, regular conditioning, and avoiding excessive heat — can help maximize their benefits.
Whether you’re struggling with thinning hair, breakage, or simply want a boost in volume, incorporating these oils into your routine can nourish your scalp and create the foundation for healthier, fuller hair.


