While lengthening mascaras [1] and boosting primers [2] can help bulk up sparse or fragile eyelashes, sometimes you need to call in additional reinforcement. That's where lash serums come in, as these pack ingredients — like biotin and panthenol — you'll probably recognise from hair (on your head) growth products [3]. Not only do they work to condition and strengthen lashes, many of these products also help over-plucked [4] or otherwise thinning brows look their best [5], too.
There are several of these non-prescription lash-growth options [6] sold right at Sephora, so we looked through the reviews to see which ones helped other shoppers in this very same situation [7]. See the top-rated picks with the best reviews ahead.
Milk Makeup Kush Growhouse Lash + Brow Serum
This top-rated Milk Makeup Kush Growhouse Lash + Brow Serum [9] ($48) can be used on lashes or brows as its formula conditions and strengthens hair in both spots with hemp-derived cannabis seed extract. Also aiding in the thickening is a peptide blend, and supportive vitamin B5 and quinoa as well.
Shiseido Full Lash and Brow Serum
The interesting thing about this top-rated Shiseido Full Lash and Brow Serum [10] ($36) is the applicator tip that makes it easy to hit the full lash line and even small spots between the hairs. Its formula has conditioning arginine to encourage shiny, fuller lashes and brows at the same time.
Grande Cosmetics GrandeLASH MD Lash Enhancing Serum
There are more than 1,600 5-star reviews for this Grande Cosmetics GrandeLASH MD Lash Enhancing Serum [11] ($34-$65) which comes in six and 12 week supplies. The serum is packed vitamins, antioxidants, and amino acids to help strengthen brittle lashes and boost the looks of short or thinning ones, too.
Lancer Skincare Lash Serum Intense
This top-rated Lancer Skincare Lash Serum Intense [12] ($150) has both biotin and panthenol for healthy hair plus several fatty acids inside that can help with sparse lashes at the same time.
There's also a limited-edition Lancer Skincare Lancer Skincare Eye Opening Essentials Duo [13] ($150) which has the same serum but adds in a bonus eye contour lifting cream for the same total price.
Peter Thomas Roth Lashes to Die For Turbo Conditioning Lash Enhancer
Peter Thomas Roth Lashes to Die For Turbo Conditioning Lash Enhancer [14] ($85) has a powerful 11 percent peptide complex — plus biotin — to help lashes look thick, long, and full. Not only do other ingredients like Tahitian plankton and aloe vera help soften dry lashes, this formula is also ophthalmologist- and dermatologist-tested for sensitive eyes and contact-lens wearers, too.