This improved formula combines glutathione rich yeast extract, probiotics, and natural GABA from fermented barley to support hydrated, brighter looking skin, regular bowel movements, and better sleep.
Made in Japan • Safety tested • GMP and HACCP certified
From softer, more radiant skin to gut health and better sleep, hear how people are experiencing The Fundamental.
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A complete 3 step ritual designed to support skin, gut health, and better sleep in one simple routine.
The Fundamental is a Singapore-founded Japanese probiotic skincare brand that believes radiant, healthy skin starts from within. Stress, poor digestion, and an imbalanced microbiome can trigger inflammation, acne, eczema, and dullness. Our probiotic skincare philosophy unites Japanese science with clean beauty to strengthen the skin barrier, restore gut balance, and enhance sleep quality. Each product is formulated and made in Japan using advanced probiotic technology and skin-beneficial probiotics for gut health and skin radiance. From our pH-balanced cleanser and gel-cream to our probiotic supplement, The Fundamental delivers holistic skincare that nurtures the skin, gut, and mind — revealing calm, clear, and luminous skin from within.
We believe great skin is not just about what you apply. It is about caring for skin, gut health, and mind together.

Gentle, effective care that supports a strong, healthy looking skin barrier.

A holistic approach that supports gut health and balance from within.

A calmer, better rested mind supports skin that looks healthier and more radiant.
The Fundamental is a contemporary Asian Brand, by Asians for Asians.
The brand is deeply rooted in Oriental wisdom, where we prioritize the fundamental well-being of the human body and take a holistic approach to understanding its intricate connection with healthy glowing skin.
“Reconnecting with your bare skin”. This is the ethos of THE FUNDAMENTAL.
Dealing with varied skin issues at different seasons of her life, our founder searched for effective and practical solutions to respond to the changing needs of her skin. Through her personal journey she found that the secret to radiant and youthful skin requires attention to our state of mind, gut health and physical skin-barrier, all at the same time.
With women's and men’s skin wellness in mind, THE FUNDAMENTAL products are formulated and manufactured in Japan with 2 years of rigorous research & development, safety and efficacy tests.
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