FAQ - Product Information
Are Yii products suitable for all skin types?
Yii products are suitable for skin in early stages of aging, including sensitive, dry, dull, rough skin prone to blackheads, acne, fatigue, and lack of radiance.
All Yii products are formulated and manufactured in Japan through the expertise of ANDS Corporation—one of Japan's top three skincare manufacturers with over 65 years of medical-grade beauty experience, specializing in skincare solutions. Yii products pass US FDA standard allergy tests, are produced in pharmaceutical-grade GMP facilities, and are certified as "quasi-drugs" by Japan's Ministry of Health, Labor and Welfare, ensuring product safety, hygiene, and efficacy.
Do the products have an expiry date?
To meet the highest safety standards, all Yii products are formulated without parabens as preservatives. We recommend using Yii products as soon as possible after purchase to experience their maximum potency. Store products in a cool place away from direct sunlight to maintain optimal effectiveness. If the product comes with a small spoon, please use it to scoop the product.
Can I use all Yii products?
Yes, you can.
Yii’s product philosophy transcends conventional skin type categorizations, prioritizing the dynamic interplay between seasonal shifts, mind-body wellness, and evolving skin needs.
To achieve optimal results, we advocate first assessing your skin’s current state, then tailoring product application quantities, sequences, and techniques accordingly. This personalized approach ensures measurable efficacy across diverse skin conditions.
For expert guidance, we recommend consulting a Yii beauty consultant at authorized retail locations, who can provide bespoke product recommendations and usage protocols aligned with your unique skin requirements.
Are the products suitable for use around the eyes?
All Yii products can be used around the eye area.
Yii products are developed and manufactured to the highest Japanese pharmaceutical standards. All products are formulated with "eye-area safe" criteria, ensuring remarkable effectiveness, high safety, and compliance with pharmaceutical-grade GMP requirements.
Are Yii products safe for pregnant women or those with ingredient allergies?
Yii skincare products are formulated under the strictest safety standards, designed to deliver effective results while prioritizing gentleness, even for sensitive users. All formulations are free from fragrances, dyes, mineral oils, and harsh additives, and undergo rigorous US FDA-approved allergy testing to minimize risks of irritation. Produced in pharmaceutical-grade GMP facilities and officially certified as "quasi-drugs" by Japan’s Ministry of Health, Labour and Welfare.Yii products contain no toxic or body-accumulating ingredients, ensuring they are safe for long-term use.
However, if you have known allergies or specific ingredient concerns, we strongly recommend consulting a doctor or healthcare provider before use to ensure the product aligns with your individual health needs.
Why does Yii choose placental extract as the main ingredient instead of emerging ingredients?
Yii prioritizes ingredients that deliver proven effectiveness while maintaining the highest safety standards.
Compared to sheep placenta popular in the beauty industry, porcine placenta shares 90% genetic similarity with human cells, enabling it to seamlessly integrate with skin cells. This unique compatibility effectively and rapidly boosts the skin’s oxygen levels, delivering measurable benefits such as anti-aging support, repair of fragile or damaged cells, improved elasticity, and reduced appearance of fine lines.
Porcine placenta has been rigorously studied globally for over 20 years, with extensive scientific data confirming its efficacy. It is widely acknowledged by both medical and skincare experts as a reliable, results-driven ingredient. Yii strictly avoids using unproven emerging ingredients lacking scientific validation as core components or for marketing claims.
Many skincare products on the market are produced using nanotechnology. Does Yii use this as well?
Rather than simply using nanotechnology to deliver nutrients quickly to the skin's deeper layers, Yii adopts a more technically demanding dual-penetration technology:
This technology achieves two key objectives simultaneously—first, it rapidly delivers nutrients to the skin’s deeper layers to support cellular repair and metabolic processes, and second, it uses a slow-drip penetration technology to gradually release nutrients from the outermost skin layer to the deeper epidermis. This dual approach optimizes efficacy for restoring compromised skin barriers and damaged tissues, ensuring targeted repair and enhanced resilience, particularly for damaged or fragile skin.