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Answer: Hyaluronic Acid is not currently banned worldwide, but health agencies have flagged concerns. The FDA still allows it in US cosmetics and personal-care products. Risk level: low. Commonly found in: Neutrogena Hydro Boost Water Gel, The Ordinary Hyaluronic Acid 2% + B5, L'Oreal Paris Revitalift 1.5% Pure HA Serum.
TL;DR: Hyaluronic Acid is allowed in the EU but allowed in the US (humectant).
Reviewed for clarity & usefulness by the BannedPantry Parent Panel
INCI name HYALURONIC ACID. Also called HA. CAS 9004-61-9.
Other names: HA, Hyaluronan, Sodium Hyaluronate (salt form)
| EU status | Allowed |
|---|---|
| US status | Allowed |
| Risk level | low |
| Where it shows up | Neutrogena Hydro Boost Water Gel, The Ordinary Hyaluronic Acid 2% + B5, L'Oreal Paris Revitalift 1.5% Pure HA Serum, RoC Retinol Correxion Hyaluronic Acid Serum |
| CAS number | 9004-61-9 |
Hyaluronic acid (HA) is a naturally occurring polysaccharide (glycosaminoglycan) found abundantly in human skin, connective tissue, and eyes. It can hold up to 1,000 times its weight in water. In cosmetics, HA is typically produced via bacterial fermentation of Streptococcus equi.
Used as a powerful humectant that draws water from the environment and dermis to plump and hydrate the skin surface. Multi-molecular weight HA targets different skin layers. It also has anti-inflammatory and wound-healing properties.
Hyaluronic acid is among the safest cosmetic active ingredients available. As an endogenous molecule in the human body, it is exceptionally biocompatible and essentially non-allergenic in topical form. The CIR has confirmed its cosmetic safety. No carcinogenicity, endocrine disruption, or significant adverse effects are documented. Rare reports of pore congestion exist with certain high-MW HA in oily skin, but these are minimal.
For educational use only. This page summarizes the regulatory status of Hyaluronic Acidwith citations to the primary sources below. It is not medical advice. Regulatory status is not the same as a proven health effect — read the cited sources for their exact wording, and consult a doctor for decisions about your or your family's health.
Sodium PCA, glycerin, or beta-glucan as alternative humectants; marine-derived alternatives like carrageenan or algae extracts.
Yes. It is one of the most recommended ingredients for sensitive skin due to its near-universal biocompatibility and gentle moisturizing action.
Yes. Multiple clinical studies confirm that topical HA (especially lower molecular weight forms) significantly increases skin hydration, reduces TEWL, and transiently improves the appearance of fine lines.
Sodium hyaluronate is the sodium salt of hyaluronic acid. It has a slightly smaller molecular size and is often better able to penetrate the stratum corneum. Both are used interchangeably in many formulas.
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