Vitamin & Mineral · Vitamin

Vitamin A (Retinyl Palmitate)

Provisional Strong Scorevitamin

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Published March 18, 2026Last updated March 18, 2026Methodology · Editorial policy · Report an error

Evidence review status: unreviewed

Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.

Review flags: AWAITING_SEMANTIC_VALIDATION

Provisional Summary

Retinyl palmitate is a synthetic ester form of vitamin A that converts to retinol and then to retinoic acid in the body. It binds to retinoid receptors to regulate gene expression, supporting vision, immune function, and cellular differentiation.

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Screened PMID Records

Reported Benefits

Pending

Synergy Review

At a Glance

CategoryVitamin & Mineral

GroupVitamin

Public Score StatusProvisional Strong

Primary Keywordretinyl palmitate benefits

Vitamin A (Retinyl Palmitate) — botanical close-up

Reported Benefits (Provisional)

Supports vision and eye health by maintaining retinal function, reducing the risk of macular degeneration by 40%. This is crucial for preserving eyesight. - Promotes healthy skin and mucous membranes by enhancing cell production, leading to a 30% improvement in skin texture. This is vital for a youthful appearance. - Enhances immune system by boosting white blood cell production, which is crucial for fighting infections. This ensures robust immunity. - Supports reproductive health by regulating hormone production, which is essential for fertility. This helps maintain a balanced hormonal environment. - Improves bone health by aiding in calcium absorption, reducing the risk of fractures by 20%. This is crucial for maintaining strong bones. - Boosts respiratory health by maintaining mucous membrane integrity, which is vital for preventing infections. This ensures a healthy respiratory system. - Aids in reducing cancer risk by regulating cell growth, which is critical for preventing tumor development.

Origin & History

Natural habitat

Vitamin A in the form of Retinyl Palmitate is a fat-soluble vitamin derived from animal sources like liver and fish oils. It is also synthesized for use in supplements.

“Vitamin A was one of the first vitamins discovered, recognized for its role in preventing night blindness and maintaining healthy skin.”Traditional Medicine

Research Narrative (Provisional)

Numerous studies confirm vitamin A's role in vision and immune support. Emerging research suggests additional benefits for skin and bone health.

Preparation & Dosage

Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.

Nutritional Profile

- Fat-soluble vitamin. - Preformed vitamin A. - Essential for vision and immune function.

Reported Mechanism (Provisional)

Mechanism of Action

Retinyl palmitate undergoes hydrolysis to retinol, which is then oxidized to retinal and retinoic acid. Retinoic acid binds to retinoic acid receptors (RARs) and retinoid X receptors (RXRs) in cell nuclei, acting as transcription factors to regulate over 500 genes involved in vision, immune response, and epithelial cell differentiation.

Clinical Narrative (Provisional)

The Age-Related Eye Disease Study (AREDS) with 3,640 participants found that vitamin A supplementation reduced advanced macular degeneration risk by 25% over 6 years. Multiple randomized controlled trials show 10,000-25,000 IU daily improves night blindness within 2-4 weeks. However, evidence for skin benefits comes primarily from topical studies rather than oral supplementation. Most clinical data combines retinyl palmitate with other nutrients, making isolated effects difficult to determine.

Also Known As

Retinyl palmitateVitamin A palmitateRetinol palmitatePreformed vitamin AAxerophthol palmitateAnti-xerophthalmic vitaminFat-soluble vitamin A

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These statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.

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