ExceptionHYAL® Star

6 min. read

01/07/2026

Patented Actives · Beauty

ExceptionHYAL® Star

A high-quality patented hyaluronic acid for deep hydration and visibly younger-looking skin

ExceptionHYAL® Star is a premium hyaluronic acid obtained by fermentation, guaranteeing very high purity, excellent microbiological safety, and consistent quality. Naturally present in skin, joints, and many connective tissues, hyaluronic acid is an essential molecule capable of retaining up to 1,000 times its weight in water.

With age, the natural production of hyaluronic acid gradually decreases, leading to a loss of skin hydration, suppleness, and elasticity. Supplementation with ExceptionHYAL® Star helps restore the body's natural reserves and contributes to maintaining hydrated, plumped, and more radiant skin.

Thanks to its premium quality and scientific validations, ExceptionHYAL® Star is now a benchmark in nutricosmetics and healthy aging.

Why did we choose ExceptionHYAL® Star?

Premium hyaluronic acid obtained by fermentation
High purity and excellent pharmaceutical quality
Several clinical studies in humans
Excellent bioavailability
Suitable for beauty and longevity formulations

Studied benefits

Deep skin hydration

Studies show that hyaluronic acid supplementation significantly improves skin hydration by increasing the skin's ability to retain water.

Firmer, more supple skin

ExceptionHYAL® Star helps improve skin elasticity and suppleness, while contributing to maintaining its natural structure.

Visible reduction in wrinkles

After several weeks of supplementation, studies report a reduction in wrinkle depth as well as an improvement in skin texture and overall quality.

Support for connective tissues

Naturally present in joints and connective tissues, hyaluronic acid helps maintain their hydration and proper functioning.

Skin beauty from within

By acting directly on the dermis, ExceptionHYAL® Star promotes plumper, more radiant, and durably hydrated skin.

Scientific evidence

Study	Main results
Oe et al., 2017	Significant improvement in skin hydration and reduction in wrinkle depth after 12 weeks of oral hyaluronic acid supplementation.
Kawada et al., 2014	Increased skin elasticity and improved overall skin quality in adults with dry skin.
Asserin et al., 2015	Confirmation of oral hyaluronic acid bioavailability and improvement in skin hydration.
ExceptionHYAL® Star scientific data	Several clinical studies confirm the quality, safety, and efficacy of premium hyaluronic acid for skin hydration and beauty.

In summary

Intensely hydrates skin from within
Helps improve skin firmness and elasticity
Helps reduce the appearance of wrinkles
Supports connective tissues and joint comfort
Provides highly purified premium hyaluronic acid

Level of scientific evidence

★★★★★High

Several randomized controlled clinical trials in humans
Double-blind placebo-controlled studies
Premium raw material of high purity
Bioavailability, efficacy, and tolerability scientifically documented

Where to find ExceptionHYAL® Star at BIOLOGYST

ExceptionHYAL® Star is present in Power Hydra Flow and Antioxidant Defense. Discover all our patented active ingredients.

Frequently asked questions

What is ExceptionHYAL® Star?

A premium hyaluronic acid obtained by fermentation, with very high purity and consistent quality.

In which BIOLOGYST product is ExceptionHYAL® Star found?

It is found in Power Hydra Flow and Antioxidant Defense.

Is oral hyaluronic acid proven?

ExceptionHYAL® Star is a patented hyaluronic acid, obtained by fermentation, of very high purity. In Europe, oral hyaluronic acid does not carry an authorized health claim.