Here’s the thing about Prime Day and Ulta’s 21 Days of Beauty that most roundups won’t tell you upfront: the hard part isn’t finding deals. It’s not buying things you don’t need just because they’re cheap. Go in with a plan and an actual budget, and these two sales are genuinely the best times all year to refresh your routine without the financial hangover.
I set a hard limit now — open the banking app, pick a number, done. I learned this after spending what I thought was a reasonable amount on a bunch of $18-and-$22 items and then staring at a $200 charge like it had personally wronged me. Multiple times. The deals are real, but so is the temptation to treat “discounted” as synonymous with “free.”
Two Sales, One Strategy
Prime Day runs 48 hours (exact dates shift, usually landing in July), while Ulta’s event is literally three weeks of rotating daily deals. They rarely overlap perfectly, which is good news for your wallet — miss something in one sale, and there’s a decent chance a comparable product shows up discounted in the other. The bigger difference is what each sale does well: Prime Day casts a wider net across brands and retailers, while Ulta’s event is where prestige beauty brands tend to show up more aggressively, with 30–50% off across most categories. Both events reliably produce beauty deals under $25. The trick is knowing where to look before you’re already three tabs deep at midnight.
Bestsellers sell out fast. Add to cart immediately — do not bookmark for later.
primers often see deep discounts during both Prime Day and Ulta 21 Days, and quality options stay well under budget
Clinique, Even Better™ Light Reflecting Glowy Face Primer $22
mascara is a Prime Day and Ulta staple with consistent deals; waterproof formulas hold their value across both sales
moisturizers are sale regulars and rarely exceed $25 on discount
Abib, Hyaluronic Hydrating Sheet Mask Daily Pick 30 sheets $24.72 (20% OFF — was $30.9)
Makeup Is Where the Money Goes (In a Good Way)
Eyeshadow palettes are probably the best value play in this entire category — a full 12–16 shade palette that normally runs $30–50 regularly drops to $15–20 during these events. Liquid lipsticks and glosses follow close behind. Foundations and concealers hold their value a little better, but 25–40% off still pulls most options into that under-$25 window. What I’d actually recommend doing is buying backups of your everyday staples: the concealer you’ve already shade-matched, the mascara you’ve repurchased four times, the foundation that photographs well. These things don’t expire fast, and locking in a discount on something you know you’ll use is just smarter than gambling on something new. Last year I bought three tubes of a mascara I love for what I’d normally spend on one. Still have the last tube. That math works.
Actually, that’s not quite right — I had four tubes originally, not three. I gifted one, which I’m counting as a win.
eyeshadow palettes are bestsellers during Prime Day and Ulta 21 Days, offering the most value per dollar spent
Rude Cosmetics, United Shimmerdom – 21 Shimmer Eyeshadow Palette 25.2g $22.4 (20% OFF — was $28)
liquid lipsticks see aggressive discounting and rarely exceed $10-15 during sales
foundations are sale staples with consistent 25-40% discounts bringing them well under $25
FENTY BEAUTY by Rihanna, Pro Filt’r Soft Matte Longwear Liquid Foundation $20 (50% OFF — was $40)
concealers are popular during beauty sales events and offer excellent value under $25
MAC Cosmetics, MACximal Sleek Satin 8HR Full-Coverage Hydrating Lipstick $25
blush is often bundled or discounted during Prime Day and Ulta events, staying under budget
BareMinerals, Gen Nude Powder Blush $24.75 (5% OFF — was $26)
Prestige Skincare Under $25 Is Possible — If You’re Quick
Skincare pricing is all over the place, which makes these sales feel more dramatic than they are for makeup. A drugstore cleanser might be $7 at full price. A prestige serum could be $65. So when I say you can find legitimate prestige skincare under $25 during these events — not diluted travel sizes, not knockoffs, the actual product — that genuinely means something.
Cleansers, toners, and moisturizers show up in almost every sale because they’re consumables people buy on repeat. Serums are less predictable; some brands go aggressive, others skip the event entirely. Sunscreen almost never goes on sale (annoying, but consistent). Masks, though? Masks are your friend — sheet masks especially get bundled down to almost nothing, and clay or treatment masks regularly hit 20–35% off.
What caught me off guard last year: vitamin C serums. Several options that normally run $40–60 dropped to $18–22 during Ulta’s sale. Gone within a day. If that’s a category you’ve been eyeing but couldn’t stomach the full price, have your cart ready before the sale clock starts — that’s the only way to actually catch it.
cleansers are sale essentials with consistent discounts during Prime Day and Ulta 21 Days
hydrating serums see significant discounts during beauty sales and are popular under-$25 finds
Neutrogena, Hydro Boost Purified Hyaluronic Acid Pressed Night Serum $23.99
sheet masks are frequently bundled or discounted, offering excellent value during sales events
mixsoon, Daily Mask Pack 20 Sheets Bundle Set $24.3 (22% OFF — was $31)
clay and treatment masks are sale regulars with consistent markdowns
Beauty of Joseon, Red Bean Refreshing Pore Mask for Purifying Pore Care $20
eye creams are popular during beauty sales and often available under $25 on discount
Nobody Talks About the Haircare Deals Enough
Why does haircare get ignored during beauty sales coverage?
Shampoo and conditioner aren’t glamorous, but you use them every single day — getting them at 40% off is the equivalent of getting a free month of product over the course of a year. That math is better than most makeup deals. Premium brands like Olaplex and K18, which normally run $25–35 per bottle, do drop to $15–20 during sales, which is the right time to try them if you’ve been curious but not quite ready to pay full price for something you haven’t tested yet.
Hair tools are a different calculation. Full-size blow dryers and straighteners might still land at $40–60 even on sale, which puts them over budget. But smaller tools — travel straighteners, clips, paddle brushes, heat protectant sprays — those regularly come in under $25. I picked up a cordless mini straightener for $22 during Prime Day last year, and I’ve genuinely used it more than my full-size one. Smaller, faster, fits in my bag. Sometimes the budget option just wins.
shampoo and conditioner sets are sale favorites, offering value packs under $25 during Prime Day and Ulta
hair brushes and tools are frequently discounted during beauty sales and stay well under budget
hair oils and serums see consistent discounts during Prime Day and Ulta 21 Days sales
Ausperi, Argan Oil Anti-frizz Hair Mask 230ml $22 (20% OFF — was $27.5)
hair masks and treatments are popular during beauty sales with significant markdowns
Four Rules That Actually Help
Build your wishlist before the sale opens. Both events announce their dates weeks ahead — use that window to add items to your cart so you’re not wandering around clicking on everything that looks vaguely interesting when the clock starts. You’ll also spot price drops faster: if something was $30 on your list and drops to $18, you’ll catch it immediately instead of accidentally paying full price because you found it through a different tab.
Read reviews from people with your actual skin tone, hair type, or concern — not just the top five reviews. I bought a $12 foundation once that photographed beautifully in every review photo and was completely wrong for my undertone in real life. Twelve dollars isn’t a disaster, but it canceled out savings from two other purchases. One bad buy does that.
Stack discounts where you can. Ulta’s free loyalty program earns you points on top of sale pricing. Prime Day sometimes adds extra discounts for specific payment methods or Prime membership perks. Neither is huge on its own, but combined with a 40% markdown, it adds up to something real across a full cart.
Check back on day 20 of Ulta’s 21-day event. Retailers push additional markdowns near the end to clear remaining inventory — things that were $20 on day one sometimes drop to $14 or $15 in the final stretch. Patience here has a payoff.
The wishlist step is the one I’d defend most strongly if I had to pick. Everything else helps, but going in without a list is how people spend $200 on things they don’t need and miss the one item they actually wanted.
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Frequently Asked Questions
When do Prime Day and Ulta 21 Days of Beauty sales happen?
Prime Day runs for 48 hours, usually in July, though exact dates shift year to year. Ulta’s 21 Days of Beauty runs in spring and fall with rotating daily deals. The two events rarely overlap, which actually gives you two separate windows to catch beauty deals under $25.
Which beauty categories go on the deepest sale during these events?
Eyeshadow palettes, mascaras, and lip products tend to see the steepest cuts — often 30–50% off. Sheet masks and hair care sets are also reliable bets. Sunscreen almost never goes on sale, and prestige serums can be hit or miss depending on the brand.
Can you actually get prestige skincare under $25 during these sales?
Yes, but you have to move fast. Vitamin C serums and brightening treatments that normally run $40–60 do drop into the $18–22 range during Ulta’s event specifically. They tend to sell out within hours, so have your payment info ready before the sale goes live.
Is it worth buying backup products during Prime Day or Ulta sales?
Absolutely — for anything you use daily. Mascaras, concealers, and shampoos don’t expire quickly, so stocking up at a discount makes real financial sense. Just limit this strategy to products you already know work for you, not things you’re trying for the first time.
How do you avoid overspending during beauty sales events?
Set a hard dollar limit before you open a single tab. Build your wishlist in the days before the sale goes live so you’re not browsing aimlessly. And read reviews before buying anything discounted — a bad $15 purchase wipes out the savings from two or three good ones.
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