The Oils Worth Putting in Your Hair, and the Ones to Avoid
Walk into any pharmacy or beauty supply and you'll find an entire wall of hair oils. Most of them will do very little for your hair. Some will actively make things worse. The marketing is almost universally unhelpful, every bottle promises shine, strength, and growth, and almost none of them explain why or how.
I've spent enough time with ingredients to have opinions about this. Here's what I actually think.
Why most hair oils underperform
The majority of commercial hair oils are built around mineral oil or silicones, ingredients that sit on top of the hair shaft rather than penetrating it. They create the appearance of shine and smoothness immediately after application, which photographs well and feels good in the first hour. But they don't do anything for the health of the hair itself. Over time, silicone buildup in particular can make hair feel heavier, duller, and more difficult to manage, which creates a dependency cycle, you use more product to address problems the product is causing.
The oils that actually benefit hair are plant-based, and they work because their molecular structure is small enough to penetrate the hair shaft rather than coat it. The difference between coating and penetrating is the difference between a temporary fix and a genuine improvement.
The oils worth knowing
Castor oil is the one I get asked about most. It has a reputation for promoting hair growth that is partly earned and partly overstated. What castor oil genuinely does well is strengthen the hair shaft and reduce breakage, which means less hair on your brush and more length retention over time. It's thick and needs to be used sparingly, ideally mixed with a lighter carrier oil, and applied to the scalp rather than the lengths. Used correctly it's one of the most effective things you can put on your hair. Used incorrectly, applied heavily to the lengths, left on for days, it causes buildup and breakage.
Jojoba oil is technically a liquid wax rather than an oil, and its molecular structure is the closest of any plant ingredient to the sebum your scalp produces naturally. This makes it exceptionally well tolerated, it regulates without stripping, moisturises without clogging. It's my favourite ingredient for scalp health specifically because it works with the scalp's own chemistry rather than overriding it.
Argan oil is lighter than both and works well on the lengths and ends, the parts of your hair that are furthest from the scalp's natural oil supply and most prone to dryness and damage. A small amount on dry ends is one of the most effective things you can do between wash days.
Coconut oil is more complicated than its reputation suggests. It penetrates the hair shaft effectively and reduces protein loss, which makes it genuinely useful for some hair types. But for hair that is already protein-sensitive, which is more common than people realise, particularly in natural and chemically treated hair, coconut oil can cause brittleness over time. If your hair feels harder or more brittle after using coconut oil consistently, that's why.
What I use and why
Our Hair Strengthening Oil is built around a blend of penetrating plant oils, formulated to work at the scalp and shaft level rather than just sit on top of the hair. The goal was an oil that strengthens over time, not one that performs well in the first five minutes and does nothing beyond that.
I apply it to the scalp in sections, massage it in properly, and use a small amount on the ends if they need it. Once or twice a week depending on what my hair needs. In summer I use slightly less than in winter, the scalp produces more oil in the heat and doesn't need as much support.
The right oil, used the right way, makes a real difference. The wrong one just sits there looking shiny.
Shop the Hair Strengthening Oil in the Legacy Collection at hausofkiya.com.
