Terms & Conditions
Last Updated: October 2026
Welcome to MaryenB, your trusted source for premium Korean skincare serums.
1. About MaryenB Korean Skincare
These Terms & Conditions govern your use of MaryenB premium Korean skincare serums provided by ThirtyTree Inc. (formerly Iso Lab. Inc.), located in South Korea. By purchasing our MaryenB skincare products including Retinol 5000IU, Vitamin C 15%, and Azelaic Acid formulations, you agree to these terms.
2. Eligibility & Use
Age Requirements: Our services are available to individuals 18+ years old. Retinol products require users to be 21+ due to active ingredient potency.
Compliance: Users must follow local laws regarding cosmetic imports and skincare product regulations in their jurisdiction.
3. Korean Skincare Product Information
Accuracy: All premium serum ingredients, concentrations, and EWG safety ratings are verified accurate and up-to-date.
Availability: Anti-aging product inventory may change without notice. Limited edition formulations available while supplies last.
4. Intellectual Property
Ownership: All MaryenB branding, skincare formulations, product images, and K-beauty content are owned by ThirtyTree Inc. (formerly Iso Lab. Inc.) and protected by intellectual property laws.
Usage: No reproduction of our premium skincare content or research data without written permission.
5. Customer Responsibilities
Account Security: Maintain confidentiality of your account and skincare purchase history.
Accurate Information: Provide correct skin type, age, skincare concerns, and shipping details for safe Korean beauty product delivery.
6. Purchase & Payment
Pricing: Premium skincare prices displayed in USD. Prices subject to change.
Payment: Orders processed after full payment received.
Shipping Status: Shipping is currently unavailable. MaryenB is not shipping orders to any country at this time. Shipping destinations, processing times, and packaging details will be announced when confirmed.
7. Shipping & Returns
Shipping: Shipping is currently unavailable. We will update this page with confirmed shipping and fulfillment information when service becomes available.
Returns: 30-day satisfaction guarantee for unopened products. Skin sensitivity returns accepted with original packaging.
Quality Assurance: Immediate replacement for damaged or expired premium skincare products.
8. Safety & Liability
Skincare Disclaimer: Individual reactions vary with active ingredients. A small-area try-out is recommended before using high-potency formulations.
Liability: MaryenB not liable for improper use or reactions to disclosed ingredients. Users are responsible for stopping use if their skin feels uncomfortable.
Jurisdiction: Terms governed by South Korean laws.
9. Privacy & Communications
Data Protection: Skin assessment data and beauty consultation information stored securely per Korean privacy laws.
Marketing: Skincare education emails and new product announcements sent to subscribers. Opt-out available anytime.
10. Updates & Changes
Modifications: We reserve the right to update these terms. Changes posted on our website and effective immediately.
Notifications: Korean beauty regulation updates and formula improvements communicated 30 days in advance.
Contact Information - Korean Skincare Support
For all inquiries regarding these Terms and Conditions or MaryenB products:
📧 Email: m@maryenb.com
🌐 Website: https://maryenb.com
🏢 Company: ThirtyTree Inc. (formerly Iso Lab. Inc.) (MaryenB)
📍 Location: South Korea
Response Time: Within 24 hours for general inquiries, immediate for safety concerns
© 2026 MaryenB - Premium Korean Skincare