K-BeautyIntel
Honest ingredient research and real prices for Korean skincare.

Klairs Vitamin Drop vs. Goodal Green Tangerine

Two beginner-friendly vitamin C serums at nearly identical price, both containing fragrance, split by ingredient source: pure low-percent ascorbic acid vs. natural tangerine extract.

Research-basedBy Nur → Last verified 9/25/2026
Criteria
Dear, Klairs
Freshly Juiced Vitamin Drop
Goodal
Green Tangerine Vita C Dark Spot Care Serum Alpha
Price$20.00$23.00
Price / unit$0.57/mL$0.58/mL
Size35 mL40 mL
Price checked9/17/20269/25/2026

Both are explicitly positioned for vitamin C beginners, both contain fragrance, and both land at nearly the same price, real substance is in the vitamin C source itself.

Why compare these two specifically

Same intended audience, same price range, and neither is fragrance-free, which removes those as deciding factors. What's left is a genuine question of vitamin C source: a mild, pure form at low concentration, or a naturally-derived plant extract.

Price per milliliter

Klairs runs $0.57 per milliliter ($20.00 for 35mL). Goodal runs $0.58 per milliliter ($23.00 for 40mL). Functionally identical price.

Pure low-percent ascorbic acid vs. natural extract

Klairs uses pure ascorbic acid at a mild, entry-level 5% concentration, alongside centella asiatica and sodium hyaluronate, a long-standing, consistently-formulated product. Goodal uses green tangerine extract at a genuine 70% concentration, a naturally-derived vitamin C source, alongside niacinamide and glutathione, with a real, repeated Olive Young bestseller record.

Our take

If you want the most predictable, longest-documented pure vitamin C form at a mild concentration, Klairs is the safer, more established choice. If you'd rather have a naturally-derived source with a genuine, repeated bestseller record behind it, Goodal is an equally reasonable beginner pick at essentially the same price.

Dear, Klairs Freshly Juiced Vitamin Drop: $0.57/mL. Pure ascorbic acid at a mild, entry-level 5%, a long-standing, consistently-formulated beginner pick.

Goodal Green Tangerine Vita C Dark Spot Care Serum Alpha: $0.58/mL. A naturally-derived vitamin C source with a genuine, repeated Olive Young bestseller record.

See our full best Korean serums by concern guide, or browse the rest of our serum coverage.

Shop these picks

Affiliate links: we may earn a commission at no extra cost to you.

Dear, Klairs Freshly Juiced Vitamin Drop$0.57/mL

Price checked 9/17/2026

Goodal Green Tangerine Vita C Dark Spot Care Serum Alpha$0.58/mL

Price checked 9/25/2026

Frequently asked

Which is better for vitamin C beginners, Klairs Vitamin Drop or Goodal Green Tangerine?

Both are explicitly positioned for beginners at nearly the same price. Klairs uses pure ascorbic acid at a mild 5% concentration. Goodal uses a naturally-derived green tangerine extract with a genuine bestseller record.

Are Klairs Vitamin Drop and Goodal Green Tangerine fragrance-free?

No, both contain fragrance.

Which is cheaper, Klairs Vitamin Drop or Goodal Green Tangerine?

They're nearly identical: Klairs runs $0.57 per milliliter, Goodal runs $0.58 per milliliter.