Yséline — by Yseline LLC
What makes Yséline different?
Every Yséline formula pairs a botanical from the tropical forests of Indochina with a clinically proven modern active. We don’t use plants as decoration — each herb is chosen for a documented reason. Our story begins with the French botanists who explored Indochina over a century ago.
Are your products natural?
Our formulas are botanical-led and free from parabens, sulphates, mineral oil, and artificial fragrance. We combine traditional Indochinese plants with evidence-based actives like Niacinamide, Zinc PCA, and Azelaic Acid.
Are Yséline products vegan and cruelty-free?
Yes. All Yséline products are vegan and never tested on animals.
Which mask is right for my skin?
• Oily skin + post-acne marks → N°01 Betel Leaf Clarity Mask
• Very oily, congested skin → N°02 Betel Zinc Balance Mask
• Sensitive, reactive skin → N°03 Coleus Calming Mask
• Inflammatory acne + redness → N°04 Bitter Melon Clarity Mask
• Early ageing + repair → N°05 False Daisy Renewal Mask
Still unsure? Email us — we’re happy to help.
How often should I use a mask?
Most Yséline masks are designed for use 2–3 times per week in the evening. N°03 should be introduced gradually, starting once per week.
Can I use more than one mask?
Yes. Many customers alternate masks across the week. N°01 and N°02 work beautifully together for oily, blemish-prone skin.
Where are your ingredients sourced?
Each botanical comes from a named region of Vietnam — betel leaf from the central highlands, húng chanh and diếp cá from the Mekong Delta, bitter melon and false daisy from the Đà Lạt plateau.
Are your products suitable for sensitive skin?
Yes. N°03 Coleus Calming Mask is specifically designed for sensitive and reactive skin. We recommend a patch test before first use.
Where do you ship from?
We ship from local fulfilment centres in the United States and the European Union, so your order arrives faster with no surprise customs fees.
Which countries do you ship to?
We currently ship to the United States, Canada, the EU, and the United Kingdom. We’re expanding — sign up to our newsletter for updates.
How long will my order take?
Orders are processed within [1–2] business days. Delivery typically takes [3–6] business days depending on your location. Full details on our Shipping Policy page.
Will I be charged customs or import fees?
Because we ship from local US and EU warehouses, your order will not normally incur customs duties. Applicable sales tax or VAT is shown at checkout.
How do I track my order?
You’ll receive a shipping confirmation email with a tracking link once your order leaves our warehouse.
What is your return policy?
Unopened products may be returned within [30] days. See our Returns & Refunds page for full details.
What payment methods do you accept?
We accept payment securely via PayPal [and other methods — to be updated].
Is my payment information secure?
Yes. All transactions are processed through secure, encrypted payment gateways. We never store your full payment details.
Still have questions?
Contact us at admin@yselineskin.com — we’ll respond within 24–48 hours.
Yséline — by Yseline LLC