The Eyelash Serum
The Eyelash Serum
For Longer Lashes & Revitalised Brows
5ml
Couldn't load pickup availability
Discover the Power of The Eyelash Serum
Unlock the secret to luscious and fuller lashes with our revolutionary Eyelash Serum by Theory Of Skin. This advanced formula is infused with scientifically proven ingredients that work in harmony to rejuvenate, fortify, and thicken your lashes during every growth phase. Crafted for those who seek naturally beautiful lashes, our serum is designed for visible results and optimal safety.
Why Choose Our Eyelash Serum?
Our Eyelash Serum stands apart thanks to its thoughtful ingredient selection and scientific basis. Unlike many lash products, this serum targets lash health at all stages of the growth cycle. Whether you're looking to enhance sparse lashes or maintain lash vitality, this serum delivers powerful benefits you can trust.
- Enhances lash length and volume
- Boosts lash density for a fuller appearance
- Delivers essential nutrients directly to hair follicles
- Designed for daily use and ideal for sensitive eyes
Infused with Essential Vitamins
Our serum is enriched with a potent blend of vitamins, including Niacinamide and Biotin. Niacinamide helps strengthen lash hair from root to tip, reducing breakage and supporting the natural growth cycle. Biotin, a well-known hair vitamin, supports keratin production for healthier, stronger lashes over time.
This careful combination of vitamins ensures your lashes stay hydrated, flexible, and less prone to brittleness. You can enjoy fuller lashes without any compromise on safety or comfort.
Botanical Extracts for Nourishment and Protection
Harnessing the power of botanical extracts, our Eyelash Serum includes ginseng root, grape seed, and pumpkin seed extracts. Ginseng root is widely recognized for stimulating hair follicles, encouraging robust lash growth. Grape seed extract is loaded with antioxidants, supporting lash health, and protecting them against daily damage.
Pumpkin seed extract adds further nourishment, helping prevent dehydration and fragility. These natural ingredients work together to keep your lashes resilient and beautiful, regardless of environmental stresses.
How Does It Work?
The Eyelash Serum applies easily and absorbs quickly along your lash line. With consistent use, you will notice lashes that look fuller, longer, and more defined. The nourishing formula conditions each individual lash, making them more resistant to breakage. Results can become noticeable in as little as four weeks with daily application.
In addition, the serum’s hydrating properties ensure your lashes stay soft and flexible, never stiff or crunchy. This approach provides comfort for daily wearers and those new to lash serums alike.
Safe, Gentle, and Effective
- Dermatologist tested for sensitive eyes
- Free from parabens, sulfates, and artificial fragrances
- No prostaglandins or harsh chemicals
- Suitable for all lash types, including those with eyelash extensions
We understand the importance of gentle, responsible beauty care. Our formula has been tested for both efficacy and safety, making it suitable for sensitive eyes and contact lens wearers.
How to Use
- Ensure your face and lash base are clean and free of makeup or oils.
- Using the applicator, apply a thin layer to the base of your upper lashes once or twice a day.
- Let the serum dry for a minute before applying other products or makeup.
- Consistent use enhances results and encourages optimal lash growth.
Regular application helps lashes appear visibly thicker and fuller, complementing any makeup look or natural routine.
Frequently Asked Questions
Have questions? Check our FAQ for more information - https://theoryofskin.co/pages/faq
See the Difference
Embrace more beautiful, defined lashes with The Eyelash Serum by Theory Of Skin. Our unique blend of scientifically proven ingredients and nourishing botanicals ensures every use brings you closer to the lashes you desire. Whether you want to recover from lash damage, maintain healthy lashes, or simply achieve more vibrant results, this serum is your secret weapon for natural allure.
Make The Eyelash Serum Part of Your Beauty Ritual
Join thousands who have transformed their lashes with daily use. Experience the benefits of modern lash science and timeless botanical care. Unlock your best lashes with Theory Of Skin’s Eyelash Serum today!
Benefits & Highlights
Benefits & Highlights
♥ Australian Owned
♥ Paraben FREE
♥ Phthalate FREE
♥ Sulfate FREE
♥ Fragrance FREE
Ingredients
Ingredients
Use & Caution
Use & Caution
- Free Shipping On All Orders Over $90 Aus Wide

Research Results
At Theory of Skin, we’re pleased to report the proportion of participants who observed the following improvements in their eyelashes after use of The Eyelash Serum* :
93% reported↑ Reported Improved Lash Appearance
91% reported↑ Reported Stronger Lashes
94% reported↑ Reported Healthier-Looking Lashes
*Based on Survey results from an independent 8-week consumer study including 50 participants
The Ritual
For optimal results, incorporate The Eyelash Serum into your daily beauty routine. Begin by gently cleansing your face, ensuring your eyelash base is free of makeup and oils. Then, twice a day—morning and evening—apply the serum carefully to the base of your upper eyelashes.
Using the precision applicator, glide the serum along the lash line as you would a traditional eyeliner. This targeted application ensures that the serum nourishes each lash at the root, promoting fuller, longer-looking lashes over time.
The Eyelash Serum isn’t just for your lashes—it's also perfect for enhancing your eyebrows. Simply apply in sparse areas to help thicken and define your brows.
Key Ingredients
Niacinamide: Supports eyelash growth by strengthening hair follicles and improving overall hair health.
Ginseng Root: Stimulates hair follicles, encouraging eyelash growth and strength.
Biotin: Promotes eyelash growth by boosting keratin production, leading to stronger, healthier lashes.
Pumpkin Seed Extract: Can promote lash health and enhance the overall appearance of lashes.
Frequently Asked Questions
Can The Eyelash Serum change the colour of my eye ?
Some studies suggest that eyelash growth serums with prostaglandin and its derivatives may negatively impact certain eye colours. Theory of Skin does NOT include prostaglandin or its derivatives.
Is The Eyelash Serum safe to use?
Absolutely! Theory of Skin is safe for use. Our serums are formulated with clinically-proven ingredients. That said, like any cosmetic product, some individuals may have allergies to specific ingredients. It's essential to review the ingredient list thoroughly before starting use. If an allergic reaction occurs, stop using the product right away and consult a healthcare professional.
How long will it take to see results from my The Eyelash Serum?
When used daily as directed, you should begin to notice longer, fuller, and thicker lashes within 4 weeks. Full results are typically visible by 12 weeks. We encourage you to take before and after photos to track your natural lash growth. There's nothing we enjoy more than seeing the incredible transformations shared by our wonderful community.
Can I use a lash growth serum when I have eyelash extensions?
Yes, The Eyelash Serum is completely safe to use with eyelash extensions. In fact, both we and professional lash technicians highly recommend it! The Eyelash Serum nourishes your natural lashes, strengthening them to better support extensions and extending the lash life cycle, reducing the need for frequent refills. However, not all eyelash growth serums are safe for lash extensions, so it's important to carefully review the packaging before use.
What if I don't see any results?
We are so confident in The Eyelash Serum that we offer a 100% money-back guarantee if you don't see results within 12 weeks. To qualify, you'll need to provide before and after photos showing your natural lashes clearly, taken from either an upward or downward angle, and dated. Please remember to take these photos before starting The Eyelash Serum. For best results, apply the serum morning and night for 12 weeks as this is a requirement for our guarantee.
What if you forget to apply The Eyelash Serum for a few days?
For best results, we recommend applying The Eyelash Serum at least once each day or night. A consistent routine is the key to optimal results.
What if you discontinue use of The Eyelash Serum?
If you discontinue use of The Eyelash Serum, your eyelashes will gradually return to their original appearance.