PrimeLash Growth Serum

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“Worth every penny. PrimeLash Serum is a miracle product. I am just getting used to waking up make-up free, and still looking this good. My lash length and volume are even better than they were 20 years ago!”

-July, PrimeLash Growth Serum Customer

With PrimeLash Serum, take care of your lashes like never before. Daily application of the gentle, lash-boosting formula makes your lashes grow on overtime, while you sleep. Wake up looking great.

PrimeLash Serum helps you transform thinning, sparse, clumped lashes to the fanning beauties you’ve always craved.

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The Eyelash Booster Mature Women Were Waiting For!




Lashes That Look Good, Without Even Trying.

Your Beauty is Our Duty.

(If You're Not Satisfied, We’ll Refund You.)

You Asked, We Answered

With PrimeLash Serum, you may be able to see results in as little as 2 weeks and up to 70% more length by week 4. Every human is different though, so be patient with yourself. Make sure to take progress pictures at Day 1, Day 30 and Day 60 to qualify for our Growth Guarantee!The important thing to remember is that all good things must take time! Growing your lashes will not happen overnight and you will need to be consistent with your application. Be patient. Longer lashes are on the horizon!

Our lash-stimulating peptide complex supports the lash's natural renewal cycle making your lashes thicker, bolder, and healthier. The mineral-dense formula helps replenish lashes with essential proteins and vitamins that provide luster and shine. Unique moisturizing agents provide superior hydration to lashes by locking in moisture while improving flexibility and elasticity.

You should use PrimeLash Serum 4 days per week! We recommend applying 1 time a day for the first 2 months for maximum results! Make sure that skin is clean before applying. If you forget one day, just hop right back in the next day :)

Our formula is specifically designed to be gentle and safe for everyone, including cancer-patients! Our products are also cruelty-free and vegan. However, you should still avoid getting the formula in your eyes. If eye contact occurs, rinse your eyes thoroughly with water.Also, if you are being treated with any ocular disorder, use PrimeLash serum under the supervision of your physician. Keep out of the reach of children. We recommend that you wash your hands and face with mild soap and water prior to application.

A tube of our PrimeLash serum will last 1-2 months, depending on how often you apply the serum. Pro Tip: Please make sure to swap out old bottles every 2 months for maximum results. Our serums don't use any yucky preservatives, so our products definitely have a shelf-life! 

Water, Butanediol, Octyl hydroxamic acid, Glyceryl octanoate, Propylene glycol, Hydroxyethyl cellulose, P-hydroxyacetophenone,Helichrysum stoechas extract, Polygonum multiflorum root extract, Nymphaea coerulea flower extract, hydrolyzed silk, Oligopeptide-1,Methyl hydroxybenzoate

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What are people saying about PrimeLash?

Customer Reviews
4.9 Based on 19 Reviews
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A PrimeCausemetics™ Customer
Janice W.
United States United States
PrimeLash Growth Serum

I have been using this serum for 3 weeks now and definitely see thicker lashes. Can't wait to see how my lashes look 6 weeks from now. Flyngram, AR

Jocelyn St.Pierre
Canada Canada
Lash serum

Using a lot but slow growth but is making a difference. Thanks

Robin C.
United States United States
Growth serum

Oh my gosh. Between the serum and the mascara, I look like I have extensions!! I am 67. I am very fair. Between age and fair lashes, I never thought I could have lashes of my own again!! I'm so happy I found Prime Cosmetics!!

Kaylene S.
United States United States

I love this product

Georgiana M.
United States United States
Prime lash

Very good experience. I have not experienced eye allergy with this prime lash. Thank goodness