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ESTHER FORMULA
Liposomal Glutathione Direct Strips
4.9Poor
Lemon oral strips with 80 mg of glutathione each; easy to take, but studies used 250 mg a day or more and the skin evidence is thin.
3rd-party tested
3 videos Shop$1.23/serving
Brand profile
ESTHER FORMULA
ESTHER FORMULA is a South Korean supplement brand founded by physician Dr. Yeo Esther (Esther Lyuh), who holds a doctorate in preventive medicine. The Seoul company, Esther Formula Co., Ltd., was incorporated in 2008 and is best known for glutathione oral strips. Its US subsidiary, Esther Formula USA Corporation, makes strips in a converted plant in Lakeport, California, and sells mainly through TikTok Shop, Amazon and its own store. A regulatory filing cited by the North Bay Business Journal put 2024 sales at about $190 million.
- Seoul, South Korea (US: Lakeport, California)
- Founded 2008
- esther-mall.com
4.9
Average score
Across 1 product
Testing & quality
The brand says its strips are made in the USA and undergo third-party testing, and the company told county officials the Lakeport plant was rebuilt to meet cGMP standards; no certificate of analysis or named testing program is published. A "Halal Certified" badge appears without a named certifier.
ESTHER FORMULA products we’ve reviewed
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