Sodium Retinoyl Hyaluronate

Sodium Retinoyl Hyaluronate is a retinoid derivative (retinoyl group linked to hyaluronate) used as an anti-aging/renewal active, typically at low percentages but intended to deliver retinoid activity over time. Despite the hyaluronate carrier potentially improving tolerability, retinoid-class ingredients have well-documented risks of dryness, stinging, erythema, and barrier disruption—especially in eczema-prone or compromised skin and when layered with other actives. Given its functional intent as a retinoid and the cumulative irritation risk in real-world routines, it warrants an “active requiring careful introduction” score. Safety Notes: In real-world consumer skincare, sodium retinoyl hyaluronate (a retinoid–hyaluronic acid conjugate typically used for gentler, slow-release retinoid delivery) is commonly dosed at very low levels in leave-on serums/creams, with entry-level products frequently using ~0.0005–0.01% as a supporting anti-aging active. High-strength OTC specialty retinoid products marketed around this specific derivative have been observed up to about 0.1% in leave-on formats; higher levels are uncommon due to cost, color/odor and stability constraints, and irritation risk. It is rarely used in rinse-off products, where effective contact time is limited and practical use levels tend to remain at the low end of the range.