Aceite de ricino para las pestañas: beneficios y usos

Castor oil for eyelashes: benefits and uses

03.03.2025

Applying castor oil to eyelashes is one of the most studied and scientifically validated methods for achieving long, strong, and healthy eyelashes.

In this journal, we will clarify everything you need to know about this natural ingredient and how we have integrated it in U/1ST.

What does castor oil provide for eyelashes?

Castor oil is a golden oil extracted from the seeds of the castor plant. Its use for medicinal purposes dates back to ancient times. Its secret lies in its composition: It is rich in fatty acids, especially ricinoleic acid, an omega-9 fatty acid with purifying and soothing properties.

This means that, besides nourishing and strengthening the eyelashes, it helps prevent infections in the hair follicles, promoting healthier growth.

If you've ever noticed your eyelashes shedding excessively or appearing weak and lifeless, this star ingredient can serve as a wonderful ally.

Benefits of castor oil to strengthen eyelashes

Why do so many people talk about its benefits? Here are some reasons why it has become a favourite:

✔ Stimulates growth: Its nutrients penetrate the roots of the lashes, helping them to grow stronger and thicker.
✔ Deep moisturising: This oil serves as a natural conditioner if your lashes are feeling dry or brittle.
✔ Prevents shedding: By strengthening the follicles, it minimises excessive lash loss.
✔ Perfect complement to your mascara: When paired with an active mascara, you can further enhance the health and volume of your lashes.

How and why we use it in U/1ST – Results? Does it work?

At U/1ST we have selected castor oil among the active ingredients in the  Multiactive Black Mascara to enhance the look from the care and nutrition of the eyelashes.Castor oil, argan oil, and panthenol provide comprehensive care for eyelashes, resulting in naturally nourished, thicker, and longer lashes.In addition to the scientific evidence of these active ingredients, at U/1ST, we have tested Multiactive Black Mascara for 28 days under dermatological and ophthalmological control in an external laboratory with real volunteers.

THE RESULTS:

First day with freshly made-up eyelashes:

  • 95% noticed raised eyelashes and a more penetrating gaze.
  • 85% immediately observed their eyelashes becoming longer and curvier.
  • 80% report that their eyelashes immediately have more volume.


After 28 days of use with freshly made-up eyelashes:

  • 55% noticed their eyelashes were more hydrated and nourished.
  • 65% Enhance the natural colour of your eyelashes.


After 28 days of use without make-up:

  • 70% indicated that their eyelashes look more cared for.

The key is patience and consistency. Don't expect to see XXL lashes in just two days, but if you use it correctly, you'll notice a significant difference. As the test indicates, after a month of use, most volunteers noted that their eyelashes had grown thicker and less brittle. This change was not drastic overnight, but gradually became apparent over time.

If you are interested in eyelash care, the best ally is Eyelash Serum, a serum that enhances the natural growth of eyelashes. At U/1ST we recommend using both products to maximise the results with this SET.

Panthenol is another favourite in eyelash and brow products if you're looking for other eye-boosting ingredients.In general, if you use it carefully, you will enjoy all its benefits without worry.

Conclusion

Castor oil for eyelashes is a natural and effective way to strengthen lashes and improve their appearance. With consistency and correct application, you can achieve longer, healthier lashes without resorting to expensive products.If you are keen on enhancing your complete beauty routine, I suggest discovering more about retinyl acetate, an ingredient that offers numerous advantages for the skin.