13 DIY Hair Growth Serums You Can Make at Home

Okay so here's my confession. I dropped a genuinely embarrassing amount of money on a serum with a celebrity's face on the box. Smelled incredible. Did basically nothing for three months straight. Meanwhile my aunt just handed me a jar of coconut oil she'd been warming up with curry leaves on her stove, no packaging, no branding, just an old steel container. Two weeks in, my hair looked fuller near the crown. Not a miracle. Just... noticeably better, in a way I could actually see in photos.

That was the moment it clicked for me: sometimes the ingredient matters way more than the marketing budget behind it.

And honestly, this is why oil-based treatments have stuck around for generations while trendy serums come and go. Most lightweight, silicone-based products just sit on top of your hair. They don't really go anywhere. Oils, on the other hand, actually work their way into the scalp, hold onto moisture, soften strands, and can carry active plant compounds down toward the follicle when you massage them in properly. Coconut oil, curry leaves, bhringraj, castor oil, rosemary, these aren't just Pinterest buzzwords, they genuinely support scalp health and cut down on the breakage that makes hair look thinner over time.

So that's basically the whole premise here. Thirteen serums you can mix up in your kitchen, using ingredients that actually do something (not just smell nice), with a quick explanation of the "why" behind each one so you're not just guessing what you're putting on your head.

A Few Science Basics First

Before jumping into recipes, it helps to understand what a serum is actually doing.

Most of the action happens on the surface of your hair, the cuticle layer. Serums smooth it down, which cuts friction and helps light bounce off evenly. That's basically what "shine" is.

If you're curious about how hair serums evolved from simple styling products into targeted hair-care solutions, read our guide on the journey of hair serum. 

A few ingredient categories worth knowing:

• Occlusive and film-formers. Think light silicones or natural esters. They seal things in.

• Humectants. Panthenol and glycerin fall here. They pull moisture in and hang onto it.

• Emollients and oils. Argan, jojoba, grapeseed. These bring fatty acids and vitamin E to the party.

• Follicle-support ingredients. Niacinamide, caffeine, peptides, EGCG from green tea. These help with scalp circulation and follicle health specifically.

None of this regrows hair overnight, and I'd be lying if I said it did. What it can do, if you stick with it, is improve your scalp's overall environment, cut down breakage, and make hair look healthier over time. Which, for most people, is close enough to "growth" that it counts.

13 Recipes Worth Trying

Small batches only. Patch test before anything touches your whole scalp. I've added a short note on the "why" for each so you're not blindly following a recipe.

1. Coconut Oil + Curry Leaf -Simmer fresh curry leaves in cold-pressed coconut oil for about 10 to 15 minutes, let it cool, then strain. Coconut oil's lauric acid actually penetrates the hair shaft (this is one of the better-studied claims in this whole list), and curry leaves add antioxidants plus some vitamin A precursors. Massage into the scalp once or twice a week, leave it in for a few hours or overnight if you can stand it.

2. Aloe + Castor Oil - Mix fresh aloe gel with castor oil and crack open a vitamin E capsule into it. Aloe's got soothing enzymes, and castor oil contains ricinoleic acid, which people swear improves blood flow to the follicles. If it feels too thick, thin it with a bit of jojoba. Apply before bed, wash out in the morning.

3. Green Tea + Jojoba - Spray Brew green tea strong, let it cool completely, then mix with jojoba oil and a few drops of rosemary oil. There's some lab evidence that EGCG in green tea can interfere with DHT activity (though I'll be honest, most of that evidence comes from cell studies, not people walking around with fuller hair). Jojoba mimics your scalp's natural oil, which helps balance things out. Keep it in a spray bottle and mist your scalp after washing.

4. Onion Juice + Black Seed Oil - Not the most pleasant smell, I'll admit. But raw onion juice provides sulfur, which your hair actually needs for keratin production, and black seed oil brings thymoquinone to the table, a solid antioxidant with anti-inflammatory properties. Apply for 20 to 30 minutes, rinse thoroughly (please), and repeat twice a week.

5. Argan Oil + Panthenol - This one's more about shine and repair than growth, if I'm being upfront. Argan oil is packed with oleic and linoleic acids, and panthenol acts as a humectant that seems to genuinely improve hair's tensile strength. Just a few drops on damp mid-lengths and ends, used like a leave-in.

6. Rice Water + Ginseng - Let your rice rinse water ferment for a day or two (it'll smell a bit sour, that's normal), then mix in some water-soluble ginseng extract. Rice water is rich in inositol, which has actually been shown to penetrate hair and help with elasticity. Spray on after washing as a light tonic.

7. Neem + Tea Tree - Good one if dandruff's your issue. Combine diluted neem oil with aloe gel and a couple drops of tea tree oil. Neem has antifungal properties from compounds like azadirachtin, and tea tree goes after Malassezia, which is the yeast usually behind flaking. Leave on 20 to 30 minutes, rinse out.

8. Hibiscus + Almond Oil - Grind hibiscus petals into a paste and mix into sweet almond oil. This one's more about conditioning and a subtle shine boost than dramatic growth. Almond oil brings magnesium and vitamin E into the mix. Once a month is honestly enough for this one.

9. Peppermint + Grapeseed - A few drops of peppermint oil in a grapeseed oil base. There's an actual 2014 study on this (mice, not humans, so take it with a grain of salt) showing menthol increases local blood flow. Grapeseed oil is light enough that it won't weigh hair down. Massage for 5 to 10 minutes, then wash out.

10. Fenugreek + Olive Oil - Soak fenugreek seeds, blend them into a paste with a bit of water, then mix with olive oil and some vitamin B5. Fenugreek has nicotinic acid and proteins that people have used for hair health forever, and olive oil brings its usual dose of oleic acid and antioxidants. Leave on 30 to 60 minutes, rinse.

11. Amla + Coconut Oil - Grate one amla and squeeze out the juice, then mix it with a tablespoon of melted coconut oil (just sit the bowl in some hot water if it's solid). Amla is ridiculously high in vitamin C, which Ayurveda calls "amrit," basically nectar, for hair, and there's decent reasoning behind it since vitamin C supports collagen, which strengthens roots. It's also been used for ages to help with premature greying. Massage in for a few minutes, leave on for an hour or two, wash out with something gentle. Best if you're dealing with weak roots or early greys.

12. Bhringraj + Sesame Oil - Heat three tablespoons of bhringraj powder in 100ml of sesame oil on low heat for about 10 minutes, then cool and strain. Bhringraj is basically Ayurveda's go-to herb for hair, loaded with iron, magnesium, and vitamin E, and it's been traditionally used for scalp circulation and slowing down greying. Sesame oil's warming quality helps it soak in a bit deeper. Massage in for 5 to 10 minutes, leave on for at least half an hour (overnight if you're patient), then wash out. Do this twice a week if your hair's been growing slowly or thinning out.

13. Avocado + Lavender - Mix avocado oil with a few drops of lavender essential oil. Avocado oil is rich in oleic acid and gets in deep enough to help clear out clogged follicles, which honestly isn't talked about enough as a cause of thinning hair. Lavender adds some antibacterial support and, according to a few studies, may help stimulate scalp circulation too. Apply before washing, massage it in, leave for half an hour. Good weekly option if your scalp tends to feel a little congested or sensitive.

Quick Reference Table

DIY vs Store-Bought: Where I Actually Land on This

Commercial serums lean hard on silicones like dimethicone for that instant glassy finish. It works for a day. Use it constantly though and buildup becomes a real thing. A lot of these formulas also throw in alcohols and synthetic fragrance, which can dry out or irritate some scalps with regular use, plus preservatives like parabens that some people would rather avoid entirely.

Here's what I like about going the DIY route. You control exactly what goes in. If you want EGCG, use green tea. It's cheap, a jar of oil and some herbs lasts weeks. And it feels personal in a way store products never do, you can tweak the ratio next time, swap an ingredient, make it yours.

But I won't pretend it's perfect. Homemade stuff doesn't have industrial preservatives, so it goes off faster than you'd think, usually within 2 to 4 weeks even refrigerated. Essential oils can genuinely irritate skin if you get careless with dilution. And there's no overnight fix here. Improvements creep in slowly, less breakage, better texture, over months, not days.

Honestly? My real answer is a mix of both. DIY treatments on wash nights, a light commercial serum for daytime styling when you need something reliable and fast.

Not sure whether your hair needs an oil, serum, spray, or tonic in the first place? Our guide on the difference between hair oil, serum, spray, and tonic explains when each product works best and how they can complement one another. 

A Few Practical Notes Before You Start

Keep batches small, 30 to 60ml is plenty, and store in amber glass if you can. If a recipe calls for water, use distilled, it just keeps things cleaner. A drop of vitamin E in oil blends slows down rancidity, though it's not a real preservative so don't push your luck past a few weeks. And patch test everything behind your ear for 48 hours before it touches your whole scalp. Skipping this step is how people end up with a rash mid-week.

When Store-Bought Actually Makes More Sense

I don't want to oversell the DIY angle here. Commercial products earn their place when you need something clinically proven, like minoxidil, or when you just want a stable formula that won't go bad on you in three weeks. If you're not interested in experimenting with ratios and troubleshooting texture, that's a completely fair reason to just buy something that works.

Good commercial serums often include things like encapsulated caffeine or peptides with a controlled pH, stuff that's genuinely hard to replicate safely at home.

DIY makes more sense if what you actually want is full ingredient transparency, a more traditional Ayurvedic approach, or you just enjoy the process of making your own stuff without spending a fortune.

So, Does Any of This Actually Work?

If you're asking whether a DIY serum will regrow hair overnight, no, obviously not. But if the real question is whether a thoughtful mix of oils and plant actives can improve scalp health and make hair look fuller over time, then yeah, honestly, it can. There's real reasoning behind ingredients like EGCG, amla's vitamin C, bhringraj, and panthenol, even if the human research isn't always as strong as we'd like.

If you only try one thing from this list, start simple. Green tea and jojoba, or amla and coconut, are good entry points. Give it 8 to 12 weeks minimum. Take photos under the same lighting so you're not relying on memory. Watch your hairbrush, not for drama, just for a gradual change in how much is coming out.

Pair it with the boring stuff too, honestly it matters more than people admit: regular scalp massages, a sulfate-free shampoo, enough protein in your actual diet.

That's really the whole point of doing this yourself. Small changes, tracked over weeks, that quietly add up into something real. So go mix something up, see what your scalp responds to, and give it time. This isn't a fast process. But it's a real one.

FAQs

1. How much DIY serum should you actually use?

Just like store-bought serums, less is more. 2–3 drops is enough for most hair lengths if you have really long or thick hair, you can go up to 4–5 drops. Using more than that with a homemade oil-based serum will just leave you looking greasy rather than glossy.

2. Do DIY hair serums have side effects?

They can, especially with concentrated essential oils like peppermint, tea tree, or lavender. Undiluted essential oils can sting, irritate, or even cause contact dermatitis on sensitive scalps. This is exactly why every recipe above calls for diluting actives into a carrier oil rather than using them neatly.

3. What's the real difference between a hair oil and a DIY hair serum?

Oil-based treatments (like the Bhringraj + Sesame tonic or Coconut + Curry Leaf infusion) are meant for the scalp; they nourish roots and support circulation. Lighter serums (like the Green Tea + Jojoba spray or Argan + Panthenol mix) are more about the strands smoothing frizz and adding shine, not deep root nourishment.

4. Can you use a DIY oil treatment and a lightweight serum together?

Yes  and this is actually the ideal combo. Use a root-focused oil treatment (like the Amla + Coconut or Bhringraj tonic) before washing, then follow up with a lightweight leave-in serum (like Argan + Panthenol) once your hair is dry, for shine and frizz control.

5. Which is better for your hair - a heavier oil treatment or a lightweight serum?

It depends on your hair's current condition. If your hair is dry, damaged, or falling out, lean into the heavier root-nourishing treatments first. If your hair is already healthy and you just want shine and manageability, a lighter leave-in serum does the job without weighing hair down.

6. How long can I actually store a homemade hair serum before it goes bad?

Without commercial preservatives, most oil-based DIY blends are only good for 2–4 weeks and that's if you store them in a cool, dark place (or the fridge) in a clean glass bottle. Water-based blends like rice water spray spoil even faster than those within 3–5 days.

7. Will any of these DIY serums actually regrow hair, or just improve how it looks?

Mostly the latter, and that's worth being upfront about. Most of these ingredients (EGCG, panthenol, lauric acid, menthol) have real evidence for improving scalp health, reducing breakage, and supporting the conditions hair needs to grow but that's different from a proven regrowth treatment like minoxidil. Think "better environment for hair to thrive" rather than "guaranteed regrowth."

8. Is it safe to mix multiple essential oils into one DIY serum?

Yes, but go easy 2–3 drops of a single essential oil per recipe is the general rule. Stacking multiple potent oils (like peppermint + tea tree + rosemary all at once) increases irritation risk without necessarily multiplying the benefit. If you want to combine actives, alternate them across different wash days instead.

9. How do I know if a DIY serum is actually working, or if I should switch it up?

Give any single recipe at least 8–12 weeks of consistent use (2–3x weekly) before judging it. Track shedding in your hairbrush, take photos under the same lighting every 2 weeks, and pay attention to texture changes rather than expecting a dramatic before/after in days.

10. Can I use these DIY serums on chemically treated or colored hair?

Most of them, yes oils like argan, coconut, and amla are generally safe and even beneficial for color-treated hair since they help retain moisture. The one to be cautious with is the Bhringraj + Henna dye recipe, since it's designed to add natural pigment  it can subtly alter chemically colored hair, so patch-test on a small section first.

Recommended Products by Blue Nectar:

Batana & Almond Hair Serum for Hair Growth (17 herbs, 50ml)

Rosemary Hair Gel for Curly, Dry & Frizzy Hair with Plant Based Keratin (12 Herbs, 50ml)

Green Tea Hair Serum for Frizzy Hair with Plant Based Biotin(12 herbs, 50ml)

Rosemary Advanced Hair Growth Serum for Dry & Frizzy Hair with Plant Based Keratin (17 Herbs, 50ml)

Related Articles:

Stop Using the Wrong Hair Product: Serum vs Spray vs Oil vs Tonic

The Journey of Hair Serum

References: 

https://www.healthline.com/health/jojoba-oil-for-hair

https://www.vogue.com/article/coconut-oil-hair

https://pmc.ncbi.nlm.nih.gov/articles/PMC3058706/

https://ctppc.org/archive/volume/6/issue/3/article/1397