Best Prime Day Beauty Deals: K-Beauty Serums, Kiehl's, Lancôme Mascara and CHI Hair Tools
Liz Harper is a digital creator covering home, lifestyle, and fashion finds. She loves discovering products that make everyday life easier, more stylish, and more affordable, and shares the best deals so her audience can shop smarter.
Article summary
10 Prime Day beauty deals for Prime Big Deal Days 2026, up to 69% off and from $11.90. No code needed; prices run through October 7.
Best Prime Day Beauty Deals: K-Beauty Serums, Kiehl's, Lancôme Mascara and CHI Hair Tools
Prime Day beauty deals are live for Prime Big Deal Days 2026, led by the medicube Exosome Shot serum down to $11.90—69% off its $39.00 list price. Every one of these Prime Day beauty deals is a straight price drop with no code to copy, and they mix cult K-beauty serums with Kiehl's, Lancôme and two CHI hair tools.
Prime Day is a smart time to restock the basics you already love and try the viral serums you have been eyeing. 🙌
Prime Day beauty deals: Today's top skincare, makeup and hair picks
Here are the Prime Day beauty deals worth adding to your cart, from Korean serums to everyday mascara. Find even more in our beauty deals hub.
medicube Exosome Shot Zero 2,000 PPM Spicule Facial Serum:
Curious about spicule serums? This one uses an exosome-coated formula built for hydration and absorption, and it's gentle enough for a first try. It's $11.90 (was $39.00)—69% off through October 7, no code needed. See more medicube deals.
VT Cosmetics CICA Reedle Shot 300:
Add a night-time step with microneedling-style spicules, centella asiatica and hyaluronic acid in one exosome serum. It's $18.00 (was $41.28)—56% off through October 7, no code needed.
ANUA PDRN Hyaluronic Acid 100 Moisturizing Cream:
Lock in moisture with a featherlight, non-greasy cream that leaves a silky finish. It's non-comedogenic, so it works for oily skin too. It's $16.80 (was $27.00)—38% off through October 7, no code needed.
mixsoon Bean Essence:
Smooth rough texture with a fermented bean essence that gently exfoliates with AHA while it hydrates. It's $15.90 (was $37.00)—57% off through October 7, no code needed.
Kiehl's Ultra Facial Cream:
Restock a classic: a lightweight, fast-absorbing moisturizer with 4.5% squalane that strengthens your skin's moisture barrier. It's $36.00 (was $72.00)—50% off through October 6, no code needed. Browse more Kiehl's deals.
Lancôme Lash Idôle Mascara:
Get lifted, clump-free lashes from a curved wand with 250 micro-bristles and a lightweight gel formula. It's $18.00 (was $30.00)—40% off through October 7, no code needed.
tarte tartelette XL Tubing Mascara:
Build length and volume with a smudge-proof, vegan tubing formula made with shea butter and biotin. It's $12.60 (was $28.00)—55% off through October 6, no code needed.
Laura Geller Baked Balance-n-Brighten Foundation:
Even out your complexion with a demi-matte baked powder that builds coverage—a good match for mature skin. It's $19.00 (was $38.00)—50% off through October 7, no code needed.
CHI Original 1" Ceramic Flat Iron:
Smooth frizz fast with floating ceramic plates that glide through hair and heat up to 392°F. It's $35.53 (was $100.00)—64% off through October 7, no code needed.
CHI Spin N Curl 1" Rotating Curling Iron:
Let the iron do the winding: an automatic curl chamber turns out consistent waves, with adjustable heat. It's $45.21 (was $131.00)—65% off through October 7, no code needed.
How to claim Prime Day beauty deals on Koupon.ai:
Every deal here is a price drop, so there is nothing to copy. If you ever need help at checkout, our guide on how to use a promo code walks through it.
- Open the deal on Koupon.ai and tap Get deal on Amazon.
- Sign in with your Prime account—Prime Big Deal Days prices are for Prime members.
- Check the size, color or bundle on the Amazon page—the Prime Day price is tied to that exact option.
- Add it to your cart. The discount is already applied, so the price you see is the price you pay.
🔹 Pro Tip: introduce one new active at a time. Use a new serum alone for a week before adding anything else, so you know what your skin is reacting to.
Which beauty deal is right for you?
Start with a moisturizer—Kiehl's or ANUA—if you only buy one thing. Pick the Lancôme mascara for lift and volume, or the tarte tubing formula if your lashes smudge. For hair, the flat iron is the more versatile tool; the Spin N Curl is for anyone who struggles to curl by hand. Most of these Prime Day beauty deals land under $40.
Why shop Amazon Prime Day deals on beauty now:
Prime Big Deal Days only runs for two days, and popular skincare sells through fast. These Amazon Prime Day deals are a good moment to stock up on what you already use and try one new product. Want more under-the-radar finds? Check our hidden gems under $30.
For more Prime Day beauty deals like these, browse trending beauty deals or get the Koupon app for price-drop alerts. Prices move fast during the sale, so grab the Prime Day beauty deals you want before it ends on October 7.
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