Brand Comparison
Decleor vs Su:m37°
A head-to-head comparison of two popular K-beauty brands. Which one is right for your skin?
Our Pick
Su:m37°
Higher editor rating (8.6 vs 8.4)
Decleor
Decleor is the French aromatherapy-clinical brand that built a 50-year reputation in European spas around plant-extract aromas and spa-cabin facial protocols. The Aromessence concentrates and Hydra Floral collection are the most globally-recognized, with formulations leaning aromatherapy-rich and spa-textured. Premium pricing, distribution heavy in spas and luxury beauty retailers.
Pros
- ✓ 50-year spa heritage
- ✓ Strong aromatherapy credentials
- ✓ Multi-line targeted skincare
- ✓ Pro-spa distribution
Cons
- ✗ Premium pricing
- ✗ Spa-distributed primarily
- ✗ Heavy aromatherapy fragrance
Su:m37°
Su:m37° bet its entire identity on one idea: ferment everything, for exactly 365 days, and don't add synthetic preservatives. The Secret Essence is what happens when that philosophy actually works — a naturally-fermented essence with legitimate cult status. Not cheap, not preachy, and the formulas have held up for 15+ years.
Pros
- ✓ Serious fermentation science
- ✓ Minimal synthetic preservatives
- ✓ Cult Secret Essence
Cons
- ✗ Luxury pricing
- ✗ Heavy natural fragrance
- ✗ Spa-lady packaging





