Lash Serum Pros and Cons – An Honest Opinion

If you are considering using a lash serum to improve the appearance of your eyelashes, you should first learn about the pros and cons of this type of product before making a purchase.
In this article, I will share my unbiased list of benefits and drawbacks of using an eyelash growth serum, so that you can make an informed decision about whether or not it is right for you.
Ready? Read on!
Disclaimer: Although I have been doing lash enhancement treatments for years, I am not a doctor. All content and information in this post are for informational and educational purposes only and do not constitute medical advice. Always seek the advice of your own Medical Provider regarding any questions or concerns you have about your specific health before implementing any recommendations or suggestions from our Website.
Lash Serums – The Pros
1- Grow Longer Lashes
This is the primary benefit of using a lash serum and the reason why many people turn to this type of product. If you want longer, thicker lashes, a lash serum can help you achieve this goal.
In fact, a recent study used a polygrowth factor serum and recorded improvements in length (10.52%), volume (9.3%), luster (11.43%), thickness (35%), and curl (50.83%), compared to baseline after only 30 days.
2- Condition and Strengthen Lashes
In addition to promoting growth, lash serums can also help to condition and strengthen your lashes. This is especially beneficial if you have brittle or weak lashes that are prone to breakage.
3- Save Time
Another advantage of using a lash serum is that it can save you time and money. If you are someone who typically uses falsies or spends a lot of time applying mascara, you may find that using a lash serum eliminates the need for these products.
The result?
Your morning beauty routine may be shorter and you may find that your lashes look better than ever before!
4- Save Money
Buying your first eyelash serum bottle may seem costly at first, but when compared to other alternatives, it’s actually inexpensive.
For example, a good-quality mascara costs about $30 but honestly, you’ll never get the same effect as you would with a lash serum.
What about lash extensions?
A full set of classic individual lashes done in a salon will cost $164 on average and then you have to maintain them with regular fills every few weeks.
I’ll admit, eyelash extensions are not completely comparable. They are a different kind of product that can truly have a transforming effect.
The bottom line is this.
When compared to other alternatives, lash serums are an affordable and long-term solution that you can use to achieve your desired lash look.
5- Naturally Beautiful
You might love the look of eyelash extensions but the thought of having synthetic fibers glued to your natural lashes might not sit well with you.
If you are looking for a more natural option, a lash serum is the way to go.
When used as directed, you can achieve beautiful, long natural lashes without any artificial fibers.
A quality product will nourish your natural eyelashes and help them achieve their full potential.
Lash Serums – The Cons
1- Potential Side Effects
There are potential side effects you should know about before deciding to use a serum on your lashes or eyebrows.
According to a study “Enhanced Eyelashes: Prescription and Over-the-Counter Options“, common adverse events associated with bimatoprost occur in less than 4% of patients.
Pro Tip: Bimatoprost is the active ingredient that can be found in Latisse, the only FDA-approved eyelash growth serum.
These side effects can include:
- eye pruritus
- conjunctival hyperemia
- skin hyperpigmentation
- ocular irritation
- dry eye symptoms
- erythema of the eyelid
2- Finding the Right Product
If you do decide to use a lash serum, it is important to find one that is right for you.
With so many options to choose from, it can be overwhelming to try and select the right product.
Here are a few things to keep in mind when choosing an eyelash growth serum:
- Ask your doctor for recommendations and discuss potential allergies.
- Make sure you know which type of lash serum you are getting. There are 3 main types of serums: prostaglandin-derived. peptide-based and vitamin-based.
- Read reviews from other users
- Do your research to find a reputable brand
- Do a patch test before using the product on your entire lash line.
You should also keep in mind that results can vary from person to person. Some people may see dramatic results within a few weeks, while it may take others several months to achieve the desired effect.
You may want to check out my buying guide for choosing the best eyelash growth serum.
3- Takes Time
One of the biggest disadvantages of using a lash serum is that it takes time to see results.
If you are looking for a quick fix, you will be disappointed. Most people won’t see any changes for at least four weeks and it can take up to three months to achieve the full effect.
This is a long time to wait if you are hoping for an immediate transformation.
4- Have to Be Consistent
For best results, you need to be consistent and apply your serum every day.
If you stop using it, your lashes will return to their pre-treatment state.
If you have a forgetful nature, it might be hard to stick to a daily beauty routine that includes applying a lash serum. This can be especially difficult if you are not seeing results right away.
Here are some tips to keep you on track:
- Set a daily alarm on your phone as a reminder.
- Keep your lash serum in a visible place so you won’t forget to use it.
- Use it at the same time every day to make it part of your daily routine.
- Try using a product with built-in applicators to make it easy to apply.
Final Thoughts

Lash serums can be a great way to achieve longer, fuller lashes without resorting to harsh chemicals or other alternatives like lash extensions.
However, it is important to carefully consider your lash serum pros and cons list before making a decision.
Keep in mind that results take time and you need to be consistent with your applications to see the best results. If you are patient and willing to put in the effort, a lash serum can give you the lashes of your dreams.
it’s important to remember that the results you’ll get from using your lash serums are not permanent. So it’s something you’ll have to include in your daily routine if you want to maintain your newly acquired lashes!
Have you tried using a lash serum? What was your experience? Let me know in the comments below.
Thanks for reading!
– Asako
Life Is Short, Your Lashes Don’t Need to Be
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