Grow thicker, longer, fuller eyelashes naturally with this DIY lash serum made with essential oils. It’s super simple to make & only contains 3 ingredients!

Diy Lash Serum with Essential Oils
Want fuller, thicker, longer lashes? Then you need to try this DIY lash growth serum! It only contains 3 ingredients and it’s completely toxin-free.
My eyelashes have been through it over the past several years. Due to my autoimmune disease (you can read more about that here) they were thinning and falling out. They just looked awful.
I really wanted to try one of those popular lash growth serums. But not only were they way too expensive, the ingredient list kinda freaked me out. More about that below!
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I am not a doctor and the statements on this blog have not been evaluated by the FDA. Products mentioned here are not intended to diagnose, treat, cure, or prevent any disease. Consult your doctor before using essential oils on children under 5 or while pregnant or breastfeeding. Please do not ask me for medical advice. Click here to read my full disclaimer.
Store-Bought Lash Serum Ingredients
Below is a list of ingredients from a very well-known, popular lash growth product.
Inactive Ingredients:NoIngredients:Water (Aqua), Butylene Glycol, HydroxyethylcelIulose, Octapeptide-2, Copper Tripeptide-1, Biotin, Panthenol, sh-Polypeptide-1, Glycine Soja (Soybean) Oil, Cucurbita Pepo (Pumpkin) Seed Extract Sodium Hyaluronate, Hydrolyzed, Glycosaminoglycans, Allantoin, Dipotassium Glycyrrhizate, Pantethine, Hydrogenated Lecithin, Sea Water (Maris Aqua), Glycerin, Rhizobian Gum, Disodium Phosphate, Polysorbate 60, Sodium Phosphate, Ethyl Acetate, Sodium Oleate, Sodium Hydroxide, Citric Acid, Alcohol Denat., lsopropyl Cloprostenate, Phenoxyethanol, Chlorphenesin, Sorbic Acid, Potassium, Sorbate, Disodium EDTA Active Ingredients:Water (Aqua), Butylene Glycol, HydroxyethylcelIulose, Octapeptide-2, Copper Tripeptide-1, Biotin, Panthenol, sh-Polypeptide-1, Glycine Soja (Soybean) Oil, Cucurbita Pepo (Pumpkin) Seed Extract Sodium Hyaluronate, Hydrolyzed, Glycosaminoglycans, Allantoin, Dipotassium Glycyrrhizate, Pantethine, Hydrogenated Lecithin, Sea Water (Maris Aqua), Glycerin, Rhizobian Gum, Disodium Phosphate, Polysorbate 60, Sodium Phosphate, Ethyl Acetate, Sodium Oleate, Sodium Hydroxide, Citric Acid, Alcohol Denat., lsopropyl Cloprostenate, Phenoxyethanol, Chlorphenesin, Sorbic Acid, Potassium, Sorbate, Disodium EDTA
First of all, that’s a ridiculous amount of ingredients! But what’s even more ridiculous is how toxic some of the ingredients are.
Take isopropyl cloprostenate for example. Isopropyl cloprostenate is a synthetic type of compound known as a prostaglandin analog.
It can cause side effects, like eye irritation, red eyes, blurred vision, inflammation, lid crusting, blurred vision, and cysts, according to theFDA.
Related: The 5 Best Essential Oils For Skin
The label is formatted to print on theAvery 2x2in labels (#22806). You print, peel from the paper, and stick right on the bottle.Or you can print on regular paper, cut out and tape or glue on the bottle.
Lash Growth Serum Side Effects
There are many side effects associated with store-bought lash growth serum products.
- Redness
- Irritation
- Skin Discoloration
- Reduced eye pressure
- Permanently increased iris pigmentation
You can read more about the possible damaging effects of store-bought lash serum here!
So after learning all about the ingredients and side effects, I decided to make my own DIY lash growth serum.
And I’m so happy I did! It works great. My lashes look better than ever. And like I mentioned earlier you only need three ingredients!

DIY Lash Growth Serum Ingredients
Rosemary Essential Oil
Rosemary essential oil is well known for stimulating hair growth. It strengthens and improves circulation and as a result, prevents hair follicles from being starved of blood supply and dying off.
It’s one of the best essential oils for hair growth.
Lavender Essential Oil
Lavender can help speed up hair growth. It can also keep the hair follicle free from bacteria which could prevent hair growth.
Castor Oil
There is a lot of hype about castor oil and its effect on hair growth all across the internet. But I couldn’t actually find any science-backed evidence proving it can actually make your hair grow longer.
But I have been using castor oil for years and I’m pretty convinced of its ability to promote hair growth.
I’ve had amazing results from my lashes to my brows to the hair on my head. So I had to include it in this DIY!
Related:
Diy Lash Growth Serum Instructions
For this DIY you’ll need the ingredients above and an empty mascara tube like this one. Simply add the ingredients below to the tube and mix well.
- 4 drops Rosemary
- 4 drops Lavender
- Fill the rest with castor oil

DIY Lash Growth Serum with Essential Oils
Yield: 8ml
Active Time: 3 minutes
Total Time: 3 minutes
Difficulty: Easy
Grow thicker, longer, fuller eyelashes naturally with this DIY lash serum made with essential oils. It's super simple to make & only contains 3 ingredients!
Tools
Instructions
- Using a funnel add 4 drops of rosemary essential oil to the mascara tube
- Add 4 drops of lavender essential oil to the mascara tube
- Fill the rest of the tube with castor oil
- Roll between hands to blend well
Recommended Products
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How to use Lash Growth Serum
Gently brush your eyelashes with the mascara wand at night before bed. Be very careful to avoid contact with your actual eye.
This can also be applied to your eyebrows as well.
Need Essential Oils?
Not all essential oils are created equally.Many are made with synthetic chemicals and fillers.But don’t let that scare you.There are many different essential oil companies that create high-quality oils.
I was pleasantly surprised to discover several brands that sell amazing, high-quality essential oils at very affordable prices.
I loveFlorihana essential oilsand I use them quite often. If you’re not familiar with Florihana essential oils you can check out my fullFlorihana essential oils review.
I also regularly useEden’s Garden,Plant TherapyandSimply Earthessential oils.
If you decide to buy fromSimply Earthyou can use the codeHAPPYHEARTFREEto receive a $40 Simply Earth gift card with the purchase of your first recipe box.
If you are not familiar withSimply Earthor their recipe box you can check outlast month’s box here.
If you order now with the code above you will receive the recipe box, the big bonus box plus a $40 Simply Earth gift card, all for $39.99!
Final Thoughts About Lash Boosting Serum
I hope you see amazing results with this all-natural lash-boosting serum. Remember, it can take up to 6 weeks to really see a difference.
Let me know if you have any questions or concerns below!