Dr. Althea vs. Goodal Green Tangerine

Both are positioned as gentler vitamin C options for people who want brightening without pure ascorbic acid's irritation risk, but they get there through different ingredient strategies.

Neither uses pure L-ascorbic acid, both are explicitly marketed toward vitamin C beginners or sensitive skin. That makes this a genuine comparison of two different gentle-entry strategies, not a potency contest.

Dr. Althea runs $0.77 per milliliter. Goodal runs $0.58 per milliliter ($23.00 for 40mL). Goodal is meaningfully cheaper per mL.

Dr. Althea builds around 3-O-Ethyl Ascorbic Acid, a stabilized vitamin C derivative, alongside niacinamide and sea buckthorn extract, explicitly marketed for first-time vitamin C users. Goodal centers on 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.

Goodal contains fragrance via multiple essential oils, including lavender, bergamot, lemon peel, and orange peel, confirmed across independent current retailer listings. That's worth weighing against its lower price and stronger award pedigree, especially for the fragrance-sensitive skin this category often targets.

If fragrance sensitivity is a concern alongside sensitivity to actives, Dr. Althea's stabilized-derivative approach is the more cautious pick. If price and a genuine, repeated bestseller record matter more, and fragrance isn't a dealbreaker, Goodal is the better-value option.

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