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The best mascara primer for most people is L’Oréal Voluminous Lash Primer.
It’s cheap, it has by far the most ratings of any primer on Amazon’s eyelash primer best-seller list, and it works under most mascaras.
But here’s the bit most lists skip: the primer’s color matters more than the brand.
A white primer needs full mascara coverage, or you’ll see gray tips.
A black primer can be worn on its own on a no-mascara day.
And one popular primer isn’t meant for tubing mascaras at all.
So below, every pick is sorted by color and by the mascara you already own.
How we chose these primers
We didn’t test these ourselves.
We compared maker and retailer specs, Amazon rating counts and Amazon’s review summaries for the best-selling eyelash primers in the US (checked November 2026).
We left out lash growth serums and lash-extension primers, which share the Amazon category but do a different job.
Mascara primers compared
| Primer | Base color | Wear it alone? | Watch out for | Amazon rating (Nov 2026) |
|---|---|---|---|---|
| L’Oréal Voluminous Lash Primer | White | No | Can clump if you don’t comb it out | 4.5/5, 48,800+ ratings |
| essence Lash Princess Mascara Primer | Not stated by maker | Not stated | Mixed reviews on clumping | 4.4/5, 5,700+ ratings |
| Lancôme Cils Booster XL | White | No | Pricey; some say it dries out | 4.6/5, 6,500+ ratings |
| Clinique Lash Building Primer | Not stated by maker | Not stated | Not for tubing mascaras | 4.6/5, 1,200+ ratings |
| Too Faced Better Than Sex Foreplay | Black | Yes | Needs waterproof or oil-based remover | 4.1/5, 290 ratings |
1. L’Oréal Voluminous Lash Primer: best for most people
This is the safe first primer if you’ve never used one.
It’s a white base that goes on before your normal mascara to add length and thickness.
Skip it if you hate combing your lashes, because one top reviewer says it clumps unless you apply it carefully.
Pros
- 4.5/5 from 48,800+ Amazon ratings, the biggest rating pool here
- Ophthalmologist tested and labeled suitable for sensitive eyes (Amazon listing)
- The listing says it removes easily
Cons
- White base: thin mascara on top can leave gray-looking tips
- Reviewers note some mascaras look the same with or without it
2. essence Lash Princess Mascara Primer: best budget pick
This is the one to grab if you already love Lash Princess mascara.
It’s made to pair with that line, and it’s vegan, cruelty-free and paraben-free per the listing.
Skip it if your lashes clump easily, since Amazon’s review summary calls opinions on clumping mixed.
Pros
- 4.4/5 from 5,700+ ratings on Amazon’s eyelash primer best-seller list
- Amazon’s summary says buyers find it keeps mascara on through the day
- Vegan, cruelty-free and paraben-free (Amazon listing)
Cons
- Mixed feedback on clumping and thickness
- The maker doesn’t list the base color, so you can’t plan for gray tips
3. Lancôme Cils Booster XL: best for short, thin lashes
This is the splurge pick if your lashes need the most help.
It’s a white primer with tiny micro-fibers that cling to lashes, plus vitamins B5 and E (Amazon listing).
Skip it if you want colored mascara to pop on dark lashes, because one critical Amazon review says it didn’t help with that.
Pros
- 4.6/5 from 6,500+ Amazon ratings, the top average here
- Amazon’s review summary says buyers see longer-looking lashes, even thin ones
- Buyers also say mascara goes on smoother with less clumping
Cons
- Costs several times more than the drugstore picks
- Some buyers say it dries out before they finish the tube
4. Clinique Lash Building Primer: best for sensitive eyes
This is the gentle pick if mascara often bugs your eyes.
Clinique calls it a conditioning undercoat that helps lashes hold onto mascara, and it’s ophthalmologist tested.
Skip it if you wear a tubing mascara (the kind that wraps each lash in little tubes), because Clinique says it isn’t recommended with those.
Pros
- 4.6/5 from 1,200+ Amazon ratings
- Listed as safe for sensitive eyes
- Removes with regular makeup remover, per Clinique
Cons
- Not for tubing mascaras, including Clinique’s own Lash Power
- Small tube: 0.16 oz (4.8 g)
5. Too Faced Better Than Sex Foreplay: best black primer
This is the pick if you want a primer you can also wear alone.
It’s black, so there’s no gray-tip risk, and Too Faced pitches it for straight lashes that won’t hold a curl.
Skip it if you want easy removal, since Too Faced says to use a waterproof or oil-based remover.
Pros
- Black base you can wear on its own
- Ophthalmologist tested and listed as safe for contact lens wearers and sensitive eyes (Macy’s listing)
- Double-arch crescent brush, 0.27 fl oz (8 ml) tube
Cons
- Lowest score here: 4.1/5 from 290 Amazon ratings
- Contains beeswax (ingredient list), so it isn’t vegan
How to pick the right primer for you
Start with the mascara you already own, not the primer.
If it’s a tubing mascara, skip Clinique and pick any other primer here.
If you only do one quick coat of mascara, pick a black primer like Too Faced, because a white base can peek through.
If you layer two or more coats, a white primer is fine and usually cheaper.
If your lashes are short or sparse, the fiber-filled Lancôme is built for that job.
If your eyes get itchy with eye makeup, start with Clinique or L’Oréal, which both say they’re ophthalmologist tested and suit sensitive eyes.
If you wear contacts, our mascara guide for contact lens wearers covers what to put on top.
How to apply a mascara primer without clumps
Thin is better than thick here.
Curl your lashes first; our curler guide for hooded eyes helps if your lid gets in the way.
Sweep one coat of primer from root to tip, and comb out any blobs right away.
Let it set for a few seconds; Too Faced says up to 10 seconds for its primer.
Then add mascara, and cover the tips fully if your primer is white.
Still getting clumps… the mascara may be the problem, so see our non-clumping mascara picks.
Mascara primer FAQ
Do lash primers actually work?
They help many people, but not with every mascara.
Amazon reviewers of the L’Oréal primer say some mascaras don’t change with it.
Should a mascara primer be white or black?
White if you always wear full mascara on top, black if you skip mascara some days or do one coat.
Can I use a mascara primer alone?
Only a black one, like Too Faced Foreplay, since a white primer alone looks gray.
Is a lash primer the same as a lash serum?
No.
A primer is makeup that goes under mascara and comes off the same day, while a serum is a leave-on treatment.
If length is your main goal, see our mascara picks for length.
Sources
- Amazon Best Sellers, Eyelash Primers category: ratings and counts for L’Oréal, essence, Lancôme and Clinique (checked 2026-11-08)
- Amazon listing ASIN B01DPA6OHO (L’Oréal Voluminous Lash Primer): ophthalmologist tested, sensitive eyes, easy removal, top reviews (checked 2026-11-08)
- Amazon listing ASIN B0B8NQJ2FM (essence Lash Princess Mascara Primer): vegan/cruelty-free/paraben-free, review summary (checked 2026-11-08)
- Amazon listing ASIN B018ZXEO50 (Lancôme Cils Booster XL, US and Amazon.ca): micro-fibers, vitamins B5 and E, review summary (checked 2026-11-08)
- Woot (Amazon ratings and reviews) for Lancôme Cils Booster XL: colored-mascara review (checked 2026-11-08)
- Clinique Lash Building Primer, clinique.com: size, tubing mascara warning, ophthalmologist tested, removal (checked 2026-11-08)
- Amazon listing ASIN B00GXWC64C (Clinique): safe for sensitive eyes (checked 2026-11-08)
- Amazon listing ASIN B0CCSKZRGN (Too Faced Foreplay): 4.1/5 from 290 ratings, brush type, 0.27 fl oz (checked 2026-11-08)
- Too Faced Foreplay at Macy’s and Nordstrom: removal, drying time, ophthalmologist tested, contact lens safe (checked 2026-11-08)
- Too Faced Foreplay ingredient list and 8 ml size via TikTok Shop listing (checked 2026-11-08)