October Prime Day is well underway, and we're not here to waste your time, but rather to make sure you don't miss a must-shop deal, especially on celeb-loved goodies. 

Tarte's Prime Day savings are offering just that with a 55% discount on its bestselling Tubing Mascara in both brown and black. That's a near-$30 full-sized mascara, now just $12.60, only on Amazon. 

Celeb-approved Prime Day deal: Tarte Tartelette XL Tubing Mascara $28 $12.60 (55% off)

Shoppers (and stars) love Tarte's Tartelette XL Tubing Mascara for several reasons: first, its superior lengthening abilities are unmatched with countless 5-star reviews calling it "false eyelashes in a tube."

The brand says it guarantees 24 hours of flake-free, smudge-proof wear and uses lash-nourishing ingredients that actually improve hair health with use.

Now 55% off, the innovative tubing formula coats each lash in lightweight “tubes” for major length and volume without clumping, flaking or weighing lashes down, creating a fluttery, falsies effect. Niacinamide, biotin and peptides help condition lashes, so you get more than the full-sized beauty for less than $13—you get makeup and lash care in one swipe.

If you're already familiar with tubing mascara, then you already know this is a more-than-good excuse to stock up during this rare sale. 

Tarte's Tubing Mascara has a long list of fans, including Bachelor Nation star Ashley Iaconetti, who exclusively told E! “I’ve been (using) Tarte for quite some time, their tubing mascara specifically.”

So what's all the hype about? The formula uses lightweight “tubes” that cling to lashes, creating longer length, bolder volume and a lightweight, wispy effect that won't clump or weigh lashes down. It's the closest you can get to eyelash extensions, without the appointment.

The moisturizing formula uses niacinamide, biotin, and peptides to condition and nourish lashes, encouraging thicker and stronger growth. Furthermore, the vegan formula isn't a pain to remove, despite its strong staying power. Just wet lashes with warm water and swipe once, the beauty of tubing mascara is that it removes completely, no scrubbing required. 

There you have it, the easiest step to achieving fake-looking eyelashes in just one step with the easiest removal process possible, we totally get the hype of this bestselling mascara.

We're stocking up on star-loved beauty essentials ahead of the holidays, like This K-Beauty Serum that Soothes Rosacea & Is Only $15 for Prime Day.

The E! Insider Shop editors and writers search the internet to find the best products out there. We interview expert sources, comb through customer reviews, and use our own personal experiences to make shopping easier for our readers.

As an editorial team, we independently create content and determine coverage based on research, reporting and what we think our readers would like to read about. The goal of our content is to provide a service and inform readers who are on the hunt for the latest products to help make their life better. Items are sold by retailer, not E!. Pricing and availability are accurate as of publish time.