• The Shampoo Lounge

DIY Hair Growth Tonic {aka mermaid hair}


I’ve always loved having healthy, thick, long hair. And that’s why this homemade hair growth tonic is such a favorite of mine.


A quick story: When I was in kindergarten, my mom took me for a haircut. The hairdresser cut my long, curly hair into a short feathered bob (it was the 1970’s after all).

My mom loved it. I didn’t.


I wanted my long hair back. I liked wearing it in ponytails, pigtails, and braids. I loved being able to change my hair into so many different styles. So ever since I’ve been old enough to choose my own hair cut, I’ve always had long hair. Sometimes it’s been past my shoulders, sometimes it’s been halfway down my back, and sometimes it’s been just off my shoulders, but I’ve always had a head full of curly thick, long hair.


I wanted my long hair back. I liked wearing it in ponytails, pigtails, and braids. I loved being able to change my hair into so many different styles. So ever since I’ve been old enough to choose my own hair cut, I’ve always had long hair. Sometimes it’s been past my shoulders, sometimes it’s been halfway down my back, and sometimes it’s been just off my shoulders, but I’ve always had a head full of curly thick, long hair.


So I researched, tried several different hair growth treatments, experimented, and finally created this homemade hair growth treatment. I love how it’s worked for me! My hair is growing in thicker, faster, and longer than it has in years. I have less breakage. My hair isn’t falling out as quickly (now it’s just a few strands and not a handful of hair every time I wash my hair). My hair is stronger and super soft.



What’s in DIY hair growth tonic {aka mermaid hair spray}?

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lavender essential oil

Research has found that lavender essential oil can help hair grow faster and longer, perhaps even helping thinning hair to regrow.

Additionally, lavender oil helps moisturize hair which can prevent damage and prevent further breakage.


rosemary essential oil

Rosemary oil increases blood circulation, stimulates hair follicles, improves hair growth, and lessens hair loss, resulting in thicker, fuller, longer hair.


cedarwood essential oil

Like rosemary essential oil, cedarwood oil also increases blood circulation, stimulates scalp, and helps hair to grow faster and thicker.


peppermint essential oil

Peppermint oil strengthens hair roots and lessens hair loss.

It also increases blood flow, which rejuvenates hair follicles and promotes hair growth.


hemp seed oil

Hemp seed oil deeply moisturizes hair and scalp. Not only does that make hair feel silky soft, it also helps strengthen hair and prevent breakage. It contains omega 3, 6, and 9 fatty acids that help hair grow thicker, faster and longer. Plus hemp contain gamma-linoleic acid which nourishes hair and aids keratin formation, which results in stronger, healthier hair.

The lipids in hemp seed oil also help increase hair’s elasticity, volume, and shine. possible substitutes: carrot seed oil, argan oil, or jojoba.


alcohol-free witch hazel

Like peppermint essential oil, witch hazel also increases blood flow and promote hair growth.

dditionally, witch hazel can reduce irritation to hair follicles that would otherwise inhibit hair growth. It also helps tame frizzy hair and adds volume.



Does it make your hair feel oily?

Nope, it doesn’t make your hair feel oily. There’s actually not much oil in it – only 1 teaspoon of oil in the entire batch. That’s just 1 part oil to 23 parts of water and witch hazel.


Do give it a good shake though before you use it to make sure that the oil gets pretty evenly distributed with the water/witch hazel. That way, you’ll just get a little tiny bit of oil with the rest of the hair tonic.


How to make hair growth tonic with essential oils

step 1: add 3 tablespoons alcohol-free witch hazel to a 4 oz spray bottle



step 2: add 1 teaspoon hemp seed oil or substitute with carrot seed oil




step 3: fill the rest of the spray bottle with distilled water (or boiled and cooled tap water)

tip: be sure to stop adding water a half inch or so below the top so that there’s room for the essential oils and the mixture won’t spill over when you add the sprayer


step 4: add the following essential oils for hair growth

10 drops lavender essential oil

10 drops rosemary essential oil

10 drops cedarwood essential oil

10 drops peppermint essential oil