Rodan and Fields Lash Boost vs. Mary Kay (The best 2 Eyelash Growth Serum)

Women from all over the world are on the quest for long lashes.

Whether by using synthetic lashes or by enhancing your natural lashes, long lashes are associated with youthfulness, beauty, and femininity.

If you’re looking for eyelash growth serums, you’ve come to the right place! You can now read here the Rodan and Fields Lash Boost vs. Mary Kay comparison review that you might be looking for!

Rodan and Fields Lash Boost vs. Mary Kay
Rodan and Fields Lash Boost vs. Mary Kay

One of the best things about Mary Kay is that there are so many options for your eyelash care!

Rodan and Fields Lash Boost is a lash serum that makes your lashes grow longer and fuller

But what do these two products have in common?

The following comparison review provides insight into why these two leading brands have the best-selling natural eyelash growth serum.

What are the differences between Rodan and Fields Lash Boost vs. Mary Kay?

Rodan and Fields Lash Boost
Mary Kay Lash and Brow serum
Panthenol, keratin, biotin, and a peptide complex
Revitalizing Lash response Complex
Apply at night along the upper lash line
Apply at night along the lash line
Average growth timeframe
5ml/1.0 fl. oz.
15 fl. oz.

Rodan and Fields Lash Boost vs. Mary Kay eyelash serum – How do they compare to one another?


Rodan and Field’s nightly-eyelash boost serum is a lash conditioner that features a unique proprietary formula.

The formula aids in enhancing lash length and volume in a matter of weeks.

The growth serum contains Panthenol to keep your eyelashes moisturized, biotin, and keratin for strengthening the lashes.

As well as, peptide complex that nourishes the lash follicles.

Latisse, this serum is not a prescription product, thus easily accessible by women looking for fuller, longer, and healthier lashes.

Mary Kay Lash and Brow serum consist of safe and non-drug formula.

It contains the refreshing Lash Response complex.

This key ingredient contains amino acids for lash nourishment.

Also, red clover extracts neutralize free radicals which may react with sensitive skin.


To use the Rodan and Fields lash boost is quite straightforward.

Apply the nightly eyelash-conditioning serum on completely dry and clean upper lash lines and wipe off any excess serum from the brush before applying.

Wait at least 90 seconds before sleeping or utilizing any other eye products for the serum to dry.

You can also use this serum on eyebrows for improved appearance and thicker eyebrows.

Mary Kay Lash and Brow serum is also applied at night, just like you would use your eyeliner.

Ensure your face does not have any make-up and is absolutely dry.

Pay more attention to sparse or bare areas between your eyelashes.

If you use it on eyebrows too, ensure you apply the formula in the direction of hair growth.


R+F recommends using the Lash Boost at night for eight weeks for full results.

However, within four weeks of using this serum, I had already begun to see results.

The 8-week timeframe also applies to your eyebrows if you apply it to the brow area.

Mary Kay Lash and Brow serum transforms your problem brows and lashes into healthy and thicker ones just within 30 days.

By strictly adhering to its daily nightly routine application.

You will enjoy voluminous and natural-looking eyelashes and brows in no time.

Rodan and Fields Lash Boost vs. Mary Kay Lash and Brow Serum – A comparison review

Rodan and Fields Lash Boost Overview and Key features

Rodan and Fields, also referred to as R+F, is popularly known due to its Proactiv brand.

In 2016, the brand released its Lash Boost product to compete with other eyelash enhancement formulas in the market.

With a blend of keratin, biotin, and a peptide complex, this product reveals results in merely 4-8 weeks and your eyelashes will no longer require mascara.

Rodan and Fields Lash Boost
Rodan and Fields Lash Boost

Lash Boost also contains the controversial isopropyl cloprostenate ingredient.

Which is known to induce side effects such as eye irritation, redness, or tingling of your eyes and your lashes may darken.

To find out if your skin will react to the product, R+F recommends either performing a patch test or reducing the frequency of application of the Lash Boost.

What we like

  • Strengthens and nourishes lash follicles
  • Versatile as you can also use it on your eyebrows
  • Easy to apply on the upper lash line of each eye

What we do not like

  • Ingredients may cause unfavorable side-effects

Mary Kay Lash and Brow serum Overview and Key features

The Mary Kay Lash & Brow Building Serum is an eyelash-enhancing formula with conditioning properties that help to volumize your lashes while improving your overall appearance.

Within 30 days, your eyelashes and eyebrows will be fuller, healthier, and longer.

Mary Kay eyelash
Mary Kay Lash and Brow serum

This nightly application product contains red clover extracts which hydrate and strengthen the lashes and brows.

It also consists of some ingredients which may cause several side effects.

Some of them include allergic reactions, skin irritations, an increased risk of developing reproductive irregularities, various forms of cancer, and hormonal imbalances.

What we like

  • Widely available due to numerous dealers and Mary Kay resellers
  • Enhances brow and lash volume and improves hair health
  • Used on eyelashes and eyebrows

What we do not like

  • Causes irritation

Frequently Asked Questions about Rodan and Fields Lash Boost vs. Mary Kay

Are Lash serums safe to use?

The eye is quite a delicate organ in the human body.

Despite genuine lash serums having FDA approval, you may find your eye, or the skin surrounding them, reacting to some products.

To avoid this, perform a patch test or reduce the rate of application of the product.

Does eyelash growth serum work?

Eyelash growth serums are expertly tested and must be FDA approved.

Ingredients such as collagen, antioxidants, peptides, and protein are proven to cause eyelash growth, and at times eyebrow hair growth.

What is lash enhancement?

It is a procedure that involves tattooing an ultra-thin black line along the lash line to create a more defining eye with fuller, longer, and thicker eyelashes.

Also known as invisible eyeliner, this procedure is an excellent solution for sparse lashes or with alopecia.

Is Rodan and Fields lash boost safe?

Even if ENHANCEMENTS Lash Boost is evaluated and determined to be safe and non-irritating, like any cosmetic product, some of the substances in the mix may be red, tin, or tingly.

How long does Rodan and Fields lash boost take to work?

4 weeks

In as little as four weeks you will witness improvement in the appearance of lashes.

However, we recommend that ENHANCEMENTS Lash Boost continue for at least 8 weeks to achieve optimal performance

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