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When to Apply Lash Serum in Your Skincare Routine

Lash serum is a beauty product that promises to enhance the appearance and health of your eyelashes. It contains ingredients that nourish, condition, and stimulate the growth of your natural lashes, making them look longer, thicker, and darker. But when should you apply lash serum in your skincare routine? And how can you get the best results from using it? In this blog post, we will answer these questions and more, so you can achieve the lash goals you’ve always dreamed of.

What is Lash Serum and How Does It Work?

Lash serum is a liquid or gel-like formula that you apply along your lash line, usually with a thin brush or a wand. It works by delivering nutrients and peptides to the hair follicles, which are responsible for producing and maintaining your lashes. Some lash serums also contain ingredients that stimulate blood circulation and extend the growth phase of your lashes, resulting in longer and fuller lashes over time.

Lash serum can benefit anyone who wants to improve the appearance and health of their lashes, especially if they are sparse, brittle, or damaged by factors such as aging, stress, hormonal changes, or frequent use of mascara, eyelash curlers, or false lashes. Lash serum can also help prevent lash loss and breakage, and protect your lashes from environmental stressors.

When to Apply Lash Serum in Your Skincare Routine?

The best time to apply lash serum is at night, before you go to bed. This is because your lashes are most receptive to the serum’s ingredients when they are in a resting state, and there is less chance of the serum being rubbed off or washed away by other products or activities. Applying lash serum at night also allows it to work overnight, while your body is in a repair mode.

To apply lash serum, you need to follow these steps:

  1. Cleanse your face and remove any makeup, especially mascara, from your eyes. You can use a gentle cleanser or a makeup remover that is suitable for your skin type and eye area. Make sure to rinse well and pat your face dry with a clean towel.
  2. Take out the lash serum applicator and dip it into the serum bottle. Wipe off any excess serum on the rim of the bottle or on a tissue, to avoid applying too much or dripping the serum into your eyes.
  3. Apply a thin layer of the lash serum along your upper lash line, starting from the inner corner and moving to the outer corner. Use a small, steady, and gentle motion, as if you are applying eyeliner. Do not apply the serum on your lower lash line, as this can cause the serum to spread into your eyes and irritate them.
  4. Repeat the same process on your other eye, using a fresh applicator or flipping the applicator to the other side, to avoid cross-contamination.
  5. Let the lash serum dry completely before you close your eyes or apply any other products on your eye area. This may take a few minutes, depending on the consistency and amount of the serum you used.
  6. Dispose of the applicator if it is disposable, or clean it with warm water and soap if it is reusable. Store the lash serum bottle in a cool, dry, and dark place, away from direct sunlight and heat sources.

How Often to Apply Lash Serum?

Most lash serums recommend applying them once a day, preferably at night, for optimal results. However, some lash serums may have different instructions, depending on their formulation and strength. Therefore, it is important to read and follow the directions on the label of the lash serum you are using, and consult your doctor or dermatologist if you have any questions or concerns.

Generally, it takes about 4 to 8 weeks of consistent use to see noticeable results from using lash serum, and about 12 to 16 weeks to see the full potential of your lashes. However, this may vary depending on your individual lash growth cycle, the quality and quantity of your lashes, and the type and frequency of the lash serum you are using. To maintain your results, you may need to continue using the lash serum regularly, or switch to a maintenance dose, such as applying it every other day or a few times a week.

What to Expect from Using Lash Serum?

Using lash serum can help you achieve longer, thicker, and darker lashes that enhance your natural beauty and make your eyes stand out. However, lash serum is not a miracle product that can transform your lashes overnight or give you unrealistic results. Lash serum can only work with what you have, and it cannot create new lashes or change the color or shape of your lashes. Therefore, you need to have realistic expectations and be patient and consistent with your lash serum application.

Some of the benefits you can expect from using lash serum are:

  • Improved lash health and strength: Lash serum can nourish and condition your lashes, making them more resilient and less prone to breakage and fallout. This can also improve the texture and shine of your lashes, making them look healthier and smoother.
  • Increased lash length and volume: Lash serum can stimulate the growth of your lashes, by extending their anagen (growth) phase and delaying their telogen (resting) phase. This can result in longer and fuller lashes that frame your eyes and create a more dramatic effect.
  • Enhanced lash color and definition: Lash serum can darken your lashes, by increasing the melanin production in your hair follicles. This can make your lashes look more noticeable and defined, especially if you have light or sparse lashes.

FAQs About Lash Serum

Here are some of the most frequently asked questions about lash serum and their answers:

  • Q: Is lash serum safe to use?
  • A: Lash serum is generally safe to use, as long as you choose a reputable brand that has been tested and approved by the FDA or other regulatory agencies. However, some lash serums may contain ingredients that can cause allergic reactions, irritation, or side effects, such as redness, itching, burning, dryness, or changes in eye color or pressure. Therefore, it is important to do a patch test before using any lash serum, and stop using it immediately if you experience any adverse reactions. You should also consult your doctor or dermatologist before using lash serum, especially if you have any medical conditions, eye problems, or are pregnant or breastfeeding.
  • Q: Can I use lash serum with other eye products, such as mascara, eyeliner, or eye cream?
  • A: You can use lash serum with other eye products, as long as you apply them in the right order and wait for each product to dry completely before applying the next one. The general rule is to apply lash serum first, before any other eye products, and let it dry for a few minutes. Then, you can apply your eye cream, followed by your eyeliner and mascara. However, you should avoid using waterproof or oil-based products, as they can interfere with the absorption and effectiveness of the lash serum. You should also remove your eye makeup thoroughly at the end of the day, before applying lash serum again.
  • Q: Can I use lash serum on my eyebrows?
  • A: Yes, you can use lash serum on your eyebrows, as long as the lash serum you are using is suitable for both lashes and brows. Some lash serums are specifically designed for both purposes, while others are only meant for lashes. Therefore, you should check the label and instructions of the lash serum you are using, and follow them accordingly. To apply lash serum on your eyebrows, you can use the same steps as you would for your lashes, but apply the serum along your brow line, following the natural shape and direction of your brows. You can also use a spoolie brush to comb through your brows and distribute the serum evenly.
  • Q: How long does lash serum last?
  • A: The shelf life of lash serum depends on the brand, formulation, and storage conditions of the product. However, most lash serums have an expiration date of about 6 to 12 months after opening, or longer if unopened. You should check the label and packaging of the lash serum you are using, and follow the expiration date and storage instructions accordingly. You should also replace your lash serum if you notice any changes in its color, texture, smell, or performance, or if it becomes contaminated or infected.


Lash serum is a great way to enhance and improve the appearance and health of your lashes, by nourishing, conditioning, and stimulating their growth. However, to get the best results from using lash serum, you need to know when and how to apply it in your skincare routine, and what to expect from it. We hope this blog post has answered all your questions and doubts about lash serum, and helped you achieve the lash goals you’ve always wanted. If you have any feedback or suggestions, please leave a comment below. Thank you for reading!

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