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If you’ve ever looked in the mirror and thought, “Why can’t my lashes look like that girl’s on Pinterest?” — girl, same. 😩
Between mascara, lash curlers, and over-plucking our brows back in 2010 (we all did it, no judgment), our poor lashes and brows have been through it.
But here’s the good news — nature’s got your back (and your lashes). Meet your new ride-or-die: Castor Oil. 💁♀️
This DIY Lash and Brow Growth Serum is 100% natural, easy to make, and seriously gives salon results without the hefty price tag.

🌿 Why Castor Oil is the Ultimate Lash & Brow Hero
Castor oil is like liquid gold for your lashes and brows. Here’s why it’s a must-have in your beauty routine:
- 🌱 Stimulates growth thanks to ricinoleic acid, which boosts hair follicles.
- 💧 Moisturizes and strengthens to prevent breakage.
- 🦋 Thickens lashes and brows with regular use.
- 💤 Soothes and conditions the delicate skin around your eyes.
And yes — it’s safe for daily use when applied properly!
🛍️ What You’ll Need (All from Amazon!)
You only need a few simple ingredients — and the best part is, they all double as skincare staples. 👇
1. Cold-Pressed Castor Oil – The magic potion 🌿
This is the main growth-boosting ingredient!
👉 Kate Blanc Cosmetics Castor Oil (100% Pure & Organic)
2. Coconut Oil or Jojoba Oil – To dilute and soften 💧
These make the serum smoother and more lightweight.
👉 Viva Naturals Organic Coconut Oil
👉 Cliganic Organic Jojoba Oil
3. Vitamin E Oil – The growth protector ✨
Adds shine, nourishes follicles, and extends shelf life.
👉 Jason Vitamin E Oil 45,000 IU
4. A Clean Mascara Tube or Dropper Bottle – For easy application 🪄
👉 Reusable Mascara Tubes (Pack of 6)
👉 Glass Dropper Bottles (Amber, Set of 6)
5. (Optional) Aloe Vera Gel – For extra softness 🌸
Keeps the serum light and hydrating for sensitive eyes.
👉 Seven Minerals Organic Aloe Vera Gel
💕 How to Make Your DIY Lash and Brow Growth Serum
Step 1: Mix the Oils
In a small bowl, combine:
- 1 teaspoon castor oil
- 1 teaspoon coconut or jojoba oil
- 2–3 drops vitamin E oil
- (Optional) ½ teaspoon aloe vera gel for extra hydration
Mix everything together until smooth.
Step 2: Transfer to Your Tube
Use a small funnel or dropper to pour the mixture into your clean mascara tube or dropper bottle.
Close tightly to avoid leaks (trust me, oily fingers aren’t fun 😅).
Step 3: Apply the Serum
Here’s how to apply it safely and effectively:
- Cleanse your face and remove all makeup before applying.
- Dip the mascara wand into your serum and wipe off any excess.
- Gently brush onto your lashes, just like mascara (avoid direct contact with eyes).
- Use the same wand or a cotton swab to apply on your brows, following their natural shape.
- Leave overnight and rinse gently in the morning.
✨ Pro tip: Apply daily for 4–6 weeks for noticeable results!
🧖♀️ Lash & Brow Care Tips
💫 Be consistent: Like any natural remedy, results take time — but they’re worth it!
💫 Don’t overload: A thin layer works better than a thick one (too much can clog follicles).
💫 Keep it clean: Use a fresh wand or sanitize it weekly.
💫 Avoid contact with eyes: It’s natural, but it can still sting.
🌺 The Science-y Part (Simplified)
Castor oil is packed with ricinoleic acid, which boosts blood circulation to your hair follicles.
This helps them absorb nutrients better — making your lashes thicker, darker, and healthier over time.
When combined with vitamin E and jojoba oil, it creates the perfect trifecta for brow and lash revival. 🙌
💎 Results You Can Expect
✔️ Week 1–2: Lashes feel softer and less brittle
✔️ Week 3–4: Brows look fuller and healthier
✔️ Week 5–6: Noticeable growth and thicker lash line
✔️ Week 7+: You’ll start getting those “Are those extensions?” compliments 😍
🌼 Storage & Shelf Life
- Store in a cool, dry place (no need to refrigerate).
- Shelf life: about 6 months, thanks to vitamin E oil.
- Always use clean hands or a sanitized wand when applying.
✨ Bonus Tip: Create a “Glow Trio”
Pair this lash and brow serum with:
💧 DIY Tinted Moisturizer for That “No Makeup” Glow
💋 DIY Natural Lip Plumper Using Cinnamon & Peppermint Oil
Your at-home beauty routine = complete spa-level glow-up. 🌸
💖 Final Thoughts
This DIY Lash and Brow Growth Serum is proof that you don’t need expensive serums or salon treatments to get stunning results. With just castor oil, vitamin E, and a little patience, you can grow naturally thick, fluttery lashes and bold brows — the kind that make people ask, “Are those real?” 😉
So go ahead, make your own serum tonight, and start your Lash Growth Era. You deserve it. 💫









