3-O-Ethyl Ascorbic Acid

Also known as: Ethyl Ascorbic Acid, EAC, 3-0-Ethyl Ascorbic Acid

Last verified: 2026-08-14

What is 3-O-Ethyl Ascorbic Acid?

Current evidence: Strong tyrosinase inhibition in-vitro; growing clinical data for brightening. Typical concentration in finished products is 1-3% Best suited for: Brightening & dark spots, Anti-aging & wrinkles, Acne — found in 35 products in the BangkokFillers database

Typical concentration1-3%

Efficacy by skin concern

Brightening & dark spots

Anti-aging & wrinkles

Acne

What Thai users say about this on Pantip

“...NIVEA Flavor Lip Delicious Drop : Peach & Vanilla Flavor ลิปมันกลิ่นพีชและวานิลลา กลิ่นหอมหวานและสดชื่นหลังทา รูปทรงเนื้อลิปเ...”

deauny · Pantip.com

“...่ารักมาก ๆ ขวดเป็นพลาสติกลดความกังวลว่าตกแล้วจะแตกไปได้อีกด้วย ราคาจับต้องได้ 3. ลิปสติก - NAMI Make Up Pro Seoul Girls Creamy Matte Lip & Cheek (สีเบอร์ 04 Honey Peach) : ตัวนี้เราใช้เป็นเบส - NAMI Make Up Pro Seoul Girls Creamy Matte Lip & Chee...”

สมาชิกหมายเลข 6125024 · Pantip.com

Products with this ingredient(35)

Smooth E Smooth E Cream Plus White 60g Kiehls Kiehls Clearly Corrective Dark Spot Solution 50ml Smooth E Smooth E Babyface Foam 120g Smooth E Smooth E Acne Hydrogel 10g GRAVICH GRAVICH Triple Vitamin C Booster Serum 30ml Plantnery Plantnery Yuzu Orange intense Serum 30ml Smooth E Smooth E Cica Repair Cream 35g Garnier Garnier Bright Complete Booster Serum 30ml LOreal Paris Loreal Paris Glycolic Bright Instant Glowing Serum 30ml GRAVICH GRAVICH Triple Vitamin C Booster Cream 50g Snowgirl Snowgirl Soothing Gel 30g Snowgirl Snowgirl Miracle White Serum 10g

Show 23 more▾

CLEAR NOSE CLEAR NOSE Dark Spot Bright Serum 100ml Cetaphil Cetaphil Bright Healthy Radiance Perfecting Serum 30ml Woonae Woonae Woonae Anti Melams X50 Pure White Serum 10g Dr.Agei Dr.Agei Tranexamic Acid 3% Niacinamide 6% Alpha Arbutin 0.5% Glycolic Acid 1% Serum 30ml #No.8 Nu Formula Nu Formula Pro White Essence Lotion 150ml SKIN1004 SKIN1004 Madagascar Centella Poremizing Fresh Ampoule 50ml ( สินค้าหมดอายุ : 2026.11.30 ) Nu Formula Nu Formula Whitening Spotless Ampoule Serum 30ml Rojukiss Rojukiss Gluta Vit C Brightening Serum 15ml Rojukiss Rojukiss Acne Spotless Serum Gel 6ml Woonae Woonae Anti Acne Serum 50g Ponds Ponds Bright Miracle Ultimate Clarity Niasorcinol Serum 30g BK BK Acne Cllear Cica Water Gel Serum 8g Skinsista Skinsista Perfect Clear Anti-Acne Booster 20ml Glad2Glow Glad2Glow Yuja 377 Dark Spot Serum 17ml Skinoxy Skinoxy Pro Vit C Booster Serum 30ml Skinsista Skinsista Flawless Bright Vit C Booster 5ml Dr.Althea Dr.Althea Gentle Vitamin C Serum 30ml Dr.Althea Dr.Althea Vitamin C Boosting Serum 30ml Plantnery Plantnery Cicasylic Acne Defense Concentrated Serum 30ml Real barrier Real Barrier Peptivita C Blemish Serum 30ml ARENCIA ARENCIA Vitamin C Booster Shot 30ml BeNice BeNice Tokyo Ichigo Tone Up Body Serum 160ml AMYJANE AMYJANE Vitamin C Brightening Gel Mask 35g

Sources

https://pubmed.ncbi.nlm.nih.gov/

Frequently asked

What is 3-O-Ethyl Ascorbic Acid?

3-O-Ethyl Ascorbic Acid (3-O-Ethyl Ascorbic Acid) is an active ingredient commonly found in skincare sold in Thailand. Highly stable vitamin C ether derivative; good skin penetration and potent tyrosinase inhibition. Current evidence: Strong tyrosinase inhibition in-vitro; growing clinical data for brightening. Typical concentration in finished products is 1-3% Best suited for: Brightening & dark spots, Anti-aging & wrinkles, Acne — found in 35 products in the BangkokFillers database

What concentration of 3-O-Ethyl Ascorbic Acid should I use?

The typical effective concentration for 3-O-Ethyl Ascorbic Acid is 1-3%. Check the product label and increase gradually to minimise irritation.

What skin concerns does 3-O-Ethyl Ascorbic Acid help with?

3-O-Ethyl Ascorbic Acid is effective for: Brightening & dark spots, Anti-aging & wrinkles, Acne — found in 35 products in the BangkokFillers database.

Which products contain 3-O-Ethyl Ascorbic Acid?

There are 35 products in the BangkokFillers database containing 3-O-Ethyl Ascorbic Acid, including Smooth E Cream Plus White 60g, Kiehls Clearly Corrective Dark Spot Solution 50ml, Smooth E Babyface Foam 120g and 32 more.