provitamin

noun

pro·​vi·​ta·​min (ˌ)prō-ˈvī-tə-mən 

: a precursor of a vitamin convertible into the vitamin in an organism

Examples of provitamin in a Sentence

Recent Examples on the Web

Panthenol, commonly known as provitamin B5, acts as a conditioning humectant to help hair retain moisture and feel softer with a satin (not shellacked) shine. — Polly Blitzer, Glamour, 9 Sep. 2026

The Hard as Hoof Nail Strengthening Cream includes vitamin E to prevent peeling, provitamin B to reduce brittleness, and retinol to stimulate collagen production. — Reece Andavolgyi, InStyle, 12 Apr. 2026

Conditioning ingredients like provitamin B5 and mango butter help lashes feel soft and flexible. — Lily Wohlner, Allure, 28 Mar. 2026

Both pre-formed vitamin A and provitamin A carotenoids are used in supplements. — Mira Miller, Verywell Health, 8 Dec. 2025

Word History

First Known Use

1927, in the meaning defined above

Rhymes for provitamin

• vitamin

Medical Definition

provitamin

noun

pro·​vi·​ta·​min (ˈ)prō-ˈvīt-ə-mən 

: a precursor of a vitamin convertible into the vitamin in an organism

ergosterol is a provitamin of vitamin D