How To Grow Eyelashes: 6 Science-Backed Ways For Bambi-Like Flutters, From Derms

Although, unless you were just born with the longest, most doe-eyed lashes, encouraging length is a bit of a struggle. Here, six science-backed, dermatologist-approved ways to put in the work: 

According to board-certified dermatologist Jeanine Downie, M.D., they really provide results: "It makes my lashes grow out longer, thicker, and fuller," she previously shares with mbg. You can opt for either an FDA-approved lash growth serum (these work by actually extending the growth phase of hair) or snagging a clean option with conditioning ingredients like castor oil, honey, and vitamin E to protect and promote the growth of those fine hairs (more in a hot minute). Always chat with a derm about all the options out there before slathering on a new serum, though, just in case you face irritation. 

Specifically, castor oil contains ricinoleic acid, a fatty acid that has antioxidant and anti-inflammatory properties. The oil is also chock-full of vitamin E, which can help protect those hairs from environmental aggressors. Finally, castor oil is both an emollient and an occlusive. What does this mean? Well, it's able to penetrate into the strands and keep moisture from seeping out in one fell swoop.

Specifically, to build keratin, your body needs several types of amino acids, many of which are part of collagen peptides1. That's why research points to collagen and biotin supplements for hair growth, as ingesting both can help support your natural levels of these essential ingredients.* In fact, one small study showed that women with thinning hair had significant regrowth when supplementing with biotin as compared to those given a placebo.* Another double-blind, placebo-controlled study showed that taking both biotin and collagen supplements supported increased hair growth2 in women.*

Bonus: Mascaras infused with moisturizing ingredients tend to clump less, as the formula isn't typically as drying.

Although, it's a lot less maintenance than keeping your scalp buildup- and flake-free. No need to reach for a clarifying solution (ouch): When washing your face, just make sure to massage a gentle cleanser into the lids as well. Be careful not to drag or tug—keep a feathery-light pressure.  

Lashes are delicate and fine, and even the smallest of errors can pluck out those hairs with ease: Things like rubbing and tugging at the eyes (both with your palms and a harsh makeup remover), curling your eyelashes with death-grip force, and using irritating eye makeup can cause those lashes to weaken (and perhaps fall out). If you frequently find lashes littered across your pillow come morning, they're probably begging for some tender care. 

Think of your lashes like miniature hairs (they are, anyway!). To help encourage length, it takes a balance of stimulating growth internally and moisturizing the hairs you already have.