Malpighia emarginata aka Barbados cherry

Acerola cherry is a natural fruit native to Central and South America.


Collagen production
Keratin production
UV protective benefits
Improve hydration
Promote longevity
Improve cognition

How it works:

The fruit contains a natural abundance of Vitamin C, as well as other active compounds including flavonoids (such as quercetin) and polyphenols. Vitamin C is a well-known antioxidant for skin health that protects skin from UV rays, supports hydration, and plays a key role in collagen and keratin production. Recent research has shown that flavonoids and polyphenols derived from Acerola cherry fight harmful free radicals and inhibit advanced glycation end product (AGE) formation, which supports longevity and cognition during healthy aging.

Safe and Effective Dosage:

Safe and effective dosages have been reported up to 1 g per day. 

Our dosage:

100 mg. The Acerola Cherry Extract used in STUNN’s formulation contains approximately 17 mg of natural Vitamin C and a complex blend of naturally active flavonoids and polyphenols.






"Structural and functional characterization of polyphenols isolated from acerola (Malpighia emarginata DC.) fruit"


Two anthocyanins, cyanidin-3-alpha-O-rhamnoside (C3R) and pelargonidin-3-alpha-O-rhamnoside (P3R), and quercitrin (quercetin-3-alpha-O-rhamnoside), were isolated from acerola (Malpighia emarginata DC.) fruit.

These polyphenols were evaluated based on the functional properties associated with diabetes mellitus or its complications, that is, on the radical scavenging activity and the inhibitory effect on both alpha-glucosidase and advanced glycation end product (AGE) formation.

C3R and quercitrin revealed strong radical scavenging activity. While the inhibitory profiles of isolated polyphenols except quercitrin towards alpha-glucosidase activity were low, all polyphenols strongly inhibited AGE formation.

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"The Roles of Vitamin C in Skin Health"


The primary function of the skin is to act as a barrier against insults from the environment, and its unique structure reflects this.

The skin is composed of two layers: the epidermal outer layer is highly cellular and provides the barrier function, and the inner dermal layer ensures strength and elasticity and gives nutritional support to the epidermis.

Normal skin contains high concentrations of vitamin C, which supports important and well-known functions, stimulating collagen synthesis and assisting in antioxidant protection against UV-induced photodamage.

This knowledge is often used as a rationale for the addition of vitamin C to topical applications, but the efficacy of such treatment, as opposed to optimising dietary vitamin C intake, is poorly understood. This review discusses the potential roles for vitamin C in skin health and summarises the in vitro and in vivo research to date.

We compare the efficacy of nutritional intake of vitamin C versus topical application, identify the areas where lack of evidence limits our understanding of the potential benefits of vitamin C on skin health, and suggest which skin properties are most likely to benefit from improved nutritional vitamin C intake.

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