7 Best Scalp Oils for Hair Growth – Acajou

maximios September 11, 2025 Beauty

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Using a scalp oil for hair growth is one my favorite steps to getting longer hair. Seriously, scalp oils are a game-changer if you have thinning hair or are just looking to increase the density density of your hair.

Scalp oils that are formulated specifically for hair growth contain scalp-healthy ingredients that can improve the condition of your hair and scalp in addition to stimulating hair growth. Finding one that calls out hair growth as a benefit is important as some scalp oils aim to balance oil production or tackle flakiness and irritation instead. Below are some of the best scalp oils for hair growth with proven track results of success.

How Scalp Oils Promote Hair Growth

Scalp oils and serums work by stimulating the scalp and follicles to grow hair where it has stopped growing or to grow hair thicker, leading to a more dense appearance. Scalp serums that aim to help regrow hair contain ingredients like turmeric, rosemary, and caffeine which are often paired with peptide blends, new innovative ingredients with early promise for hair growth, or ingredients which have long been studied for hair growth effects.

Whichever scalp oil you use, it’s important to use it consistently in order to see results. Using it daily and take care not to wash it out afterwards as you want the product to really sink into your scalp. For more details on how to get the most out of your scalp serums, check out my article on how to use scalp serums.

Vegamour GRO Hair Serum

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Vegamour creates some of the best hair growth serums on the market and their CBD-infused GRO Serum aims to tackle moderate to severe thinning. Vegamour focuses on fighting hair thinning and hair loss and their products use plant-based ingredients and science to help regrow hair over time. With some patience and daily, consistent use, users have seen dramatic changes to their hair length and density with this serum.

Rogaine Women’s 5% Minoxidil Foam for Hair Thinning and Loss

Rogaine’s key hair growth ingredient, Monoxidil, is clinically proven to regrow hair and revive hair follicles. While technically not an oil or serum, this foam is easy to apply and a little goes a long way. It’s a non-greasy formula that dries a little stiff, so it’s important to use a small amount.

The Ordinary Multi-Peptide Serum for Hair Density

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I’ve used this hair density serum from The Ordinary and experienced massive promising regrowth that started only a few weeks after I started using it. This is one of there affordable hair growth serums on the market thanks to The Ordinary’s entrance into haircare. This serum uses Redensyl along with caffeine to stimulate hair growth. I’ve found this serum to be pretty lightweight and it doesn’t leave my hair greasy which makes it the perfect leave-in scalp serum.

Nutrafol Growth Activator Hair Serum

Nutrafol’s lightweight hair serum uses Ashwagandha Exosomes to boost cell turnover and make hair look thicker and healthier. It strengthens hair while also hydrating the scalp. Start out by applying this serum all over your scalp to promote thicker hair and hair growth. Once you’ve used the serum for a few months, you can switch to just applying to specific areas of concern.

Mielle Rosemary Mint Scalp & Hair Strengthening Oil

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The Mielle Rosemary Strengthening Oil went viral on Tiktok and rosemary has been shown in studies to stimulate hair growth with regular use. This oil from Mielle is thick and best for those with thick and dry hair. This oil from Mielle is multi-use; it can be used to nourish your scalp, stimulate your follicles to provide a good foundation for hair growth, and keep hair moisturized and ends soft.

Act + Acre Stem Cell Scalp Serum

Act + Acre’s Scalp Serum is an amazing scalp serum for pretty much any scalp issue, and it also extends your hair’s growth phase and lessens thinning and fall out. It’s a soothing, hydrating, and balancing serum that uses stem cells from Swiss apples to make your hair and scalp look and feel healthier overall. This is an amazing serum if you’re looking for something you know will work and that can solve any scalp issue you want to throw at it.

Necessaire The Scalp Serum

This super light serums soothes flaky scalps and makes hair thicker and fuller. It uses a 5% Biomimetic Peptide Blend for hair growth and uses hyaluronic acid and green tea extract to soothe. I love that this serum is made without oil which means it keeps hair from turning greasy.

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Best Scalp Oils for Hair Growth Conclusion

With consistent use, scalp oils and serums can nourish your scalp and provide a good foundation for hair growth take place. Healthy follicles grow healthy, thick hair. Expect to make a scalp serum a regular part of your daily routine for weeks or even months before seeing results, but with some dedication these seven serums can have a truly transformative effect on your hair.