The best beauty deals in Amazons Spring Sale — nows a great time to stock up on skincare and K-beauty favorites

Amazon's Big Spring Sale is officially here, and the mega-retailer is showing out with plenty of beauty deals.

Deals on the Shark FlexStyle, T3 tools, and one of the best Dyson Supersonic dupes — the Laifen Swift — are just a sampling of what's available during the weeklong sale that wraps up on March 31 at 11:59 p.m. PT.

Hair tools aren't the only feature of this sale: Amazon has a ton of markdowns on K-beauty favorites like Medicube, Anua, and Dr. Althea. You'll also want to double-check what's available before you restock at Sephora: Sunday Riley, Ouai, Pureology, Paula's Choice, and Topicals are just some of the brands offering discounts on their most beloved products.

As Mashable's beauty expert, I combed the available markdowns to choose 40 of the best deals live so far — but I'll be updating this post as availability shifts over the next week.

Best multistyler deal

Why we like it

It's not that I'm a Dyson Airwrap hater; it's just that I know you can get essentially the same experience for less than half the price with the Shark FlexStyle. Though options for multi-stylers and Airwrap alternatives have expanded over the past few years, Shark remains one of the best, offering a great selection of attachments, versatility (especially with the twistable base), and innovation. This Black Cherry model is still $50 away from its record-low pricing of $249.99, but it doesn't go on sale often, making this still a great price to nab it at.

Hair tech deals

• BaByliss Pro Nano Titanium flat iron — $76.99 $109.99 (save $33)

• BaByliss Pro Porcelain Ceramic Carrera hair dryer — $80.49 $114.99 (save $34.50)

• Dreame Pocket Hair Dryer — $89.98 $129.99 (save $40.01)

• Laifen SE Lite hair dryer — $89.99 $119.99 (save $30)

• Laifen Swift hair dryer — $109.99 $139.99 (save $30)

• T3 SinglePass Curl X — $119.99 $149.99 (save $30)

• BaByliss Pro StyleSwitch — $124.99 $249.99 (save $125)

• Shark Glossi — $129 $179 (save $50)

• Dreame Dazzle multi-styler — $159.99 $299.99 (save $140)

• ghd Platinum+ Styler Flat Iron — $175.19 $319 (save $143.81)

• Dyson Supersonic Nural — $349.99 $549.99 (save $200)

• Dyson Airwrap i.d. — $499.99 $649.99 (save $250)

Best skincare deal

Why we like it

Sunscreen is a non-negotiable, whether or not you're into skincare. A daily (if not more) application habit is easier to build up with a formula that a) offers great protection and b) is lightweight and comfortable. This Paula's Choice pick is suited toward normal to oily skin, with less of a dewy finish than other options on the market. Still, it provides plenty of moisture, so you won't have to balance sun protection and feeling like a husk at the end of the day.

More skincare deals

• Starface Hydro-Star Pimple Patches + Big Yellow Compact — $10.99 $14.97 (save $3.98)

• Medicube Zero Pore Pad 2.0 toner pads — $14.90 $25 (save $10.10)

• Biodance Bio Collagen Real Deep Mask — $15.20 $19 (save $3.80)

• Anua Azelaic Acid Serum — $15.40 $22 (save $7.40)

• Illiyoon Ceramide Ato Concentrate Cream — $17.49 $28.99 (save $11.50)

• Topicals Faded Brightening Under Eye Masks — $17.60 $22 (save $4.40)

• Dr. Althea 345 Relief Cream — $20.45 $27 (save $6.55)

• Sunday Riley C.E.O. Glow Face Oil — $28 $40 (save $12)

• Paula's Choice 2% Skin Perfecting BHA Liquid Exfoliant — $29.59 $37 (save $7.41)

• Supergoop! Unseen Sunscreen — $32.50 $38 (save $5.50)

• EltaMD UV AOX Elements Tinted Mineral Sunscreen — $36.80 $46 (save $9.20)

Skincare tech deals

• Solawave Red Light Therapy Wand — $118.29 $169 (save $50.71)

• Medicube Booster Pro — $132 $228 (save $96)

Makeup deals

• Nature Republic Honey Melting Lip — $7.64 $12.90 (save $5.26)

• Nature Republic Honey Melting Lip Butter Balm — $8.99 $13.90 (save $4.91)

• Glow Recipe Glass Balm Lip Treatment — $17.60 $22 (save $4.40)

• Wonderskin Cream Blush — $20.80 $26 (save $5.20)

• Clinique Almost Lipstick (Nude Honey) — $21.25 $25 (save $3.75)

• Anastasia Beverly Hills Brow Definer — $21.60 $27 (save $5.40)

• Ilia Eye Stylus Shadow Stick — $27.19 $33 (save $5.81)

• Rephr brush 05 — $31.50 $45 (save $13.50)

Haircare deals

• MALIN+GOETZ Sage Styling Cream — $19.60 $28 (save $8.40)

• OUAI Super Dry Shampoo — $24 $30 (save $6)

• Pureology Hydrate Sheer Conditioner — $26.60 $38 (save $12.40)

• Living proof Full Dry Volume & Texture Spray — $28.80 $36 (save $7.20)

• Olaplex No. 4 Fine Bond Maintenance Kit — $51 $68 (save $17)