I’ve Tested Hundreds of Beauty Products—These Are the 10 Amazon Prime Day Deals I’d Actually Spend My Money On

October means a few things for us beauty lovers: Halloween nails, fresh fall haircuts, and, most importantly, stocking up on our beauty must-haves while they’re on sale for October’s Amazon Prime Day.As a member of Cosmo’s beauty team, I spend my days (and nights) testing all types of products, from splurge-worthy hair tools to viral face masks, to figure out which ones are actually the best of the best, and more importantly, worth your hard-earned dollars. After more than three years of rigorous beauty journalism, I’ve gotten pretty skilled at separating the average formulas and devices from the ones I keep reaching for long after a testing period is over.The products that made this list are the ones I’ve emptied, replaced, use on repeat, and would happily spend my own money on. And they all happen to be on sale right now. Happy shopping!Even after testing dozens of hair tools during my time on Cosmo’s beauty team, I’m still a Dyson girl through and through for the perfect bouncy blowout. I haven’t seen an Airwrap, complete with all the best styling attachments, at a price this low since last year. Plus, it comes with a serum that tames any frizz and flyaways.And while the Dyson is 30%, it’s still a pricey investment! So for $300 less, you can get the Shark FlexStyle. It’s got powerful drying abilities, plus curling barrels, a round brush, and more, to customize your style to your liking.I truly haven’t used a makeup wipe in years, and this French pharmacy staple is my absolute favorite micellar water for removing any makeup, sweat, dirt, or oil on my skin, without ever feeling drying or stripping. This was my first purchase as soon as it went on sale today.Not to be dramatic, but I need my Shark CryoGlow Mask like I need air. The blue light setting combined with the under-eye cryo is the perfect way to start my mornings, and the remote keeps track of your session progress in real time.Meet my favorite K-Beauty masks. I throw on one of these right before bed, and I consistently wake up with the glowiest skin imaginable. It makes moisturizer an optional step the next morning, and truly gives that coveted glass skin finish.This is the best brightening serum for sensitive skin—it always leaves my complexion looking glowing and even, especially my post-acne hyperpigmentation. I quite literally stocked up on a fresh bottle of this when I was in Paris last week—I wish I knew it was going to be on sale—guess I’ll just have to buy another!These are the best eye patches I’ve tried in literal years. The textured material makes them slip-proof, so you can wear them around your house without them sliding off your face. And the patches are soaked in a formula filled with caffeine, glycerin, collagen water, and tons of other ingredients that will leave your under-eyes looking like you got a full nine hours of sleep.An oldie but a goodie, this Laneige sleeping mask never fails to keep my lips hydrated overnnight. And for $17, I will be stocking up on multiple flavors. Vanilla is my favorite for winter, it’s the perfect last self-care step for my winter skincare routine.If you hate the dry feeling and overly alcohol-y scent of classic hand sanitizers, Touchland makes so many incredible scents that simultaneously clean and hydrate your hands. I slip one of these into all of the bags I own so I’m never without one, and this pack comes with five fresh iterations.My dry, eczema-prone skin is no match for this ultra-hydrating body wash from Dove. It has a serum-like texture that lathers luxuriously, while its glycerin-loaded formula leaves my arms and legs feeling soft and never stripped. I left a bottle in my boyfriend’s shower, and every time I use it, I wonder why I put it in his bathroom instead of keeping it for myself.Jasmine Hyman is the Assistant Beauty Editor at Cosmopolitan, where she writes about the latest beauty trends and must-have products. Her most prized beauty possessions are a meticulous skincare routine and salon blowouts. You’ll also likely find her in bed reading a good book or endlessly scrolling TikTok (spoiler: it’s usually the latter) while listening to Harry Styles’ entire discography on repeat. Follow her on Insta to be inundated with pictures of her meals.