05
The Drugstore K-Beauty
Sub-$100 Complete
Complete K-beauty routine that costs less than a single SK-II essence. Every product under $20, all on Amazon, all backed by the dermatology subreddits.
Budget · K-BeautyUnder $100Beginner
The Essentials
The minimum routine. Skip nothing here.
01 / CLEANSER
Cleanser
COSRX Low pH Good Morning Gel Cleanser
Gel · pH 5.5 · ~$12
View on Amazon→
02 / SERUM
Serum
Beauty of Joseon Glow Serum
Propolis · niacinamide · ~$17
View on Amazon→
03 / MOISTURIZER
Moisturizer
Beauty of Joseon Dynasty Cream
Ginseng · light · ~$18
View on Amazon→
04 / SPF
SPF
Beauty of Joseon Relief Sun
SPF50+ PA++++ · ~$19
View on Amazon→
The Extras
Optional add-ons. Each has a "when to add" trigger — none are daily-use unless the trigger fits.
01 / TONER
Toner
Anua Heartleaf 77% Soothing Toner
Heartleaf · ~$18
When to add: add for soothing barrier prep
View on Amazon→
02 / ESSENCE
Essence
COSRX Advanced Snail 96 Mucin Power Essence
Snail mucin 96% · ~$18
When to add: add for hydration layering and barrier repair
View on Amazon→
03 / TREATMENT
Treatment
Mediheal N.M.F Aquaring Sheet Mask (10pk)
Hydrating sheet masks · ~$15 / 10
When to add: add 1-2× weekly for hydration boost
View on Amazon→
— Editor's Note
Drugstore K-beauty is where the value lives. Beauty of Joseon, COSRX, Anua, Round Lab — these brands compete with $100 prestige creams on barrier function and beat them on ingredient transparency. The TikTok hype makes some products go in/out of stock; if a hero is gone, the alternates list at the end of the page calls out the closest substitute.