Lab Alley sells pure 'cosmetic grade' 99.9% hydroquinone powder online in the USA. It is used for skin whitening and brightening applications and products. Lab Alley sells bulk 2500 gram containers of hydroquinone powder at wholesale prices.
Hydroquinone powder is used to make creams and gels. Grades are used to characterize the purity of a substance. However, there is no technical standard for 'cosmetic grade'. This is a term used loosely. In the cosmetic industry the vast majority of ingredients are either technical grade or sometimes also pharmaceutical grade.
Hydroquinone has a variety of uses principally associated with its action as a reducing agent that is soluble in water. It is a major component in most black and white photographic developers for film and paper where, with the compound metol, it reduces silver halides to elemental silver.
Hydroquinone is used as a topical application in skin whitening to reduce the color of skin. Hydroquinone products are frequently used to lighten the skin on a person's face. While using hydroquinone as a lightening agent can be effective with proper use, it can also cause skin sensitivity. Using a daily sunscreen with a high PPD (persistent pigment darkening) rating reduces the risk of further damage. Hydroquinone is sometimes combined with alpha hydroxy acids that exfoliate the skin to quicken the lightening process. In the United States, topical treatments usually contain up to 2% in hydroquinone. Otherwise, higher concentrations (up to 4%) should be prescribed and used with caution.