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BulkActives are DIY skin care suppliers of skin actives, cosmetic ingredients, cosmeceuticals, active ingredients, and standardized botanical extracts for diy skin care products and homemade cosmetics.
New & Updates
Attention: BulkActives is a part-time business.
Orders are processed on Saturdays and mailed on Mondays at the latest, usually earlier.
Free original software: Recipe creator
NEW! Safe, mild and gentle SURFACTANTS for DIY facial wash, body wash & shampoo:
lightening and brightening
Skin whitening or skin lightening refers to the practice of using active ingredients in an attempt to lighten skin tone or provide an even skin complexion by lessening the concentration of melanin (treating hyper pigmentation often caused by sun damage).
Why does get skin get darker in the sun?
Skin gets darker when exposed to sunlight because ultraviolet rays from the sun stimulate the production of melanin. Melanin is a pigment that protects the skin from damage.
Melanin protects the body by absorbing solar radiation. Excessive solar radiation causes direct and indirect DNA damage to the skin and the body naturally combats and seeks to repair the damage and protect the skin by creating and releasing further melanin into the skin's cells.
DISCLAIMER:Any statements about products sold by BulkActives have not been evaluated by the FDA. Products sold by BulkActives are not intended to be used as nutritional supplements. Products sold by BulkActives are not intended to diagnose, treat, cure, or prevent any disease.
What about postinflammatory hyperpigmentation?
Postinflammatory hyperpigmentation is caused by repeated pigmentation of skin in scarring and healing processes in the skin.
Postinflammatory hyperpigmentation primarily affects the basal cell layer of the epidermis, making it as difficult to remove as a tattoo
The process that causes postinflammatory hyperpigmentation is either the oxidation of arachidonic acid generated by the skin's inflammatory response to irritation, or the stimulation of melanocytes during inflammatory periods (usually called epidermal hypermelanosis).
The first cause is almost a dyeing process, while the second is caused by a natural skin pigmentation process gone wild. Lesions tend to be light brown to black in color. They also darken with exposure to light.
How does skin get darker?
Firstly, the UVA-radiation creates oxidative stress, which in turn oxidizes existing melanin and leads to rapid darkening of the melanin.
Secondly, there is an increase in production of melanin process called melanogenesis, which is the body's reaction to photodamage from UV radiation.