coffee-tea
Caffeine Solution 5% + EGCG
This serum combines an exceptionally high concentration of caffeine with highly purified Epigallocatechin Gallatyl Glucoside (EGCG) from green tea leaves. It is the industry gold standard for targeting periorbital puffiness and dark circles using coffee and tea derivatives at a price point that makes it accessible for long-term use.
Quality & Materials
Uses a solubility-stabilized caffeine at 5% concentration. The EGCG is sourced from green tea and is provided in a highly purified form to prevent oxidation, which is a common failure in tea-based skincare.
Evidence & Testing
Caffeine is a proven vasoconstrictor in dermatological studies for reducing edema. EGCG has significant data supporting its role as a potent antioxidant that protects against UV-induced damage.
Brand Transparency
DECIEM (parent company) provides full pH levels (4.50-5.00), is cruelty-free, vegan, and formulated without oils, silicones, or alcohol. They disclose the exact concentration of the primary active.
Value Assessment
At under $10 for 30ml, it offers the lowest cost-per-active-milligram in the category, often lasting 3-4 months with daily use.
Why Not Alternatives?
Unlike luxury eye creams that charge $60+ for 'botanical extracts' in undisclosed amounts, this formula provides therapeutic dosages (5% caffeine) and specifies the exact tea polyphenol used. Most competitors use green tea 'extract' which often lacks standardized EGCG levels.
Sources & References
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