Retinyl palmitate

Updated: 2026-07-31

Overview

Retinyl palmitate is an ester formed from retinol (vitamin A) and palmitic acid, combining the benefits of both compounds. It is a stable and bioavailable form of vitamin A, commonly used in industries requiring controlled release or enhanced shelf life. Its synthetic and natural variants cater to diverse applications, from skincare to nutritional supplements. The compound's stability under moderate temperatures and resistance to oxidation make it preferable over free retinol in formulations. Regulatory bodies like the FDA and EFSA approve its use in food and cosmetics, though concentration limits apply.

Physical and Chemical Properties

Retinyl palmitate appears as a pale yellow viscous liquid or waxy solid, depending on temperature. Its molecular structure includes a large hydrocarbon chain, rendering it lipid-soluble. This property facilitates its incorporation into oil-based products like creams and capsules. Key chemical traits include its susceptibility to degradation under UV light and high heat, necessitating opaque or airtight packaging. Analytical methods like HPLC are used to assay its purity, which typically exceeds 90% in commercial grades.

Main Applications

In cosmetics, retinyl palmitate acts as an anti-aging agent by promoting cell turnover and collagen production. It is a staple in serums, moisturizers, and sunscreens, often combined with other antioxidants like vitamin E. Pharmaceutical formulations leverage its role in treating vitamin A deficiency, with oral or injectable options. Food industries fortify dairy products and margarine to address nutritional gaps, especially in regions with dietary deficiencies.

Safety and Storage

While retinyl palmitate is considered safe, excessive topical use may cause skin irritation or photosensitivity. Oral intake beyond recommended doses can lead to hypervitaminosis A, with symptoms like dizziness and liver toxicity. Proper storage in cool, dark environments extends its shelf life to 2-3 years. Bulk procurement should include COA (Certificate of Analysis) to confirm stability and absence of heavy metals or solvents.

B2B Procurement Guide

B2B buyers should prioritize suppliers with ISO 9001 or GMP certifications to ensure quality consistency. Request batch-specific testing reports for purity, residual solvents, and microbial limits. Negotiate bulk pricing for orders above 100 kg, with discounts of 10-15%. Spot-check deliveries using third-party labs, especially for sensitive applications like injectables or infant nutrition.