vitamin4 cited usesBest taken: with_food

Vitamin A

Retinol/retinyl palmitate, a fat-soluble vitamin essential for vision, immune function, skin health, and cellular differentiation. Important for maintaining healthy epithelial tissues.

What it’s good for

Dry SkinStrong

Vitamin A (retinol) is essential for skin cell differentiation, turnover, and sebaceous gland function. It promotes keratinocyte maturation, enhances the skin barrier, stimulates collagen production, and normalizes desquamation to prevent dry, flaky skin.

Dose: 2500–5000 IU

AcneStrong

Vitamin A normalizes keratinocyte differentiation preventing follicular hyperkeratinization (comedones). It reduces sebaceous gland activity, modulates inflammatory gene expression, and supports skin cell turnover to prevent pore clogging.

Dose: 5000–10000 IU

Vitamin A is a structural component of rhodopsin, the light-sensitive photoreceptor pigment in rod cells. It maintains corneal epithelial integrity, supports conjunctival goblet cell mucin production, and is essential for dark adaptation and visual acuity.

Dose: 2500–5000 IU

Eye StrainModerate

Vitamin A maintains the health of conjunctival goblet cells that produce the mucin layer of the tear film. Adequate vitamin A prevents corneal drying and ensures proper tear film stability, reducing friction and eye strain during prolonged visual tasks.

Dose: 2500–5000 IU

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