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Awaken Your Natural Glow with BIYUSEN™

The story of IREN Shizen began with our visionary scientists as they unraveled nature's best-kept secret: an enchanting water sourced from rare Japanese "moor" onsen hot springs. Overflowing with lavish doses of natural moisturizing and anti-aging ingredients, it unveils a complexion so silky-smooth, you'll feel like royalty.

Years of research were invested to perfect an intricate alchemy process – one designed precisely for transforming this extraordinary "moor" onsen water into something truly extraordinary. This metamorphosis gave birth to BIYUSEN™ - an organic compound teeming with skin-renewing acids unparalleled in their transformative powers. This exclusive miracle complex, infused in all IREN Shizen products, is clinically proven to restore your delicate skin back to its optimum splendor.

Fulvic acid

Enhances your skin’s natural defense mechanism as it is a powerful anti-oxidant. It also helps the absorption of oxygen and water.

Humic acid

Lengthens the life of hyaluronic acid molecules. This keeps the skin’s moisture level as high as possible and slows down wrinkle formation.

Hymatomelanic acid

Smooths and heals skin texture and accelerates the healing of superficial micro-wounds as well as cell renewal.

Visible Results in 28 Days

Our supercharged serums with our miracle ingredient BIYUSEN™ are put through vigorous testing to ensure the highest levels of efficacy.

100% agree skin feels softer, smoother and more supple
97% agree skin feels instantly hydrated with a healthy, radiant glow
94% agree skin looks firmer, lifted and feels more elastic
Discover the Japanese Art of Layering

7 Serums, 35 Combinations

Inspired by the Japanese art of layering and thanks to our Encapsulated BIYUSEN™ Technology, our seven custom serums can be mixed and applied in one single step for a personalized and targeted treatment.

Real People, Real Results