MizuMi UV Aqua Lock Serum SPF50+ PA++++ 40g
Protect your skin and keep it hydrated with MizuMi UV Aqua Lock Serum SPF50+ PA++++. This Japanese-style sunscreen serum combines broad-spectrum UVA and UVB protection with up to 8 hours of moisture retention, making it an easy addition to your daily skincare routine.
The lightweight Aqua-Serum texture spreads smoothly and absorbs quickly without a sticky feel or visible residue. Comfortable under makeup, it leaves skin feeling hydrated without an overly oily finish.
Up to 8 Hours of Hydration
Aqua Gel Lock technology uses a Dual Bio-Film system to help retain moisture and reduce water loss for up to 8 hours. It helps keep skin comfortable and prevents a dry, tight feeling throughout daily wear.
The 8-hour claim refers to hydration, not the duration of sun protection. Reapply sunscreen according to the packaging directions.
Key Benefits
- SPF50+ PA++++ protection — Helps protect against UVA1, UVA2 and UVB rays
- Up to 8-hour moisture retention — Aqua Gel Lock technology helps maintain hydration and reduce water loss
- Lightweight, fast-absorbing serum — Blends easily without a heavy or sticky feel
- Smooth finish under makeup — Designed to leave no visible residue and layer comfortably into your routine
- Environmental defense — Formulated to help defend against blue light/HEV, infrared and pollution-related stressors
- Comfortable daily wear — Keeps skin feeling moisturized without excessive greasiness
- Skin and eye irritation testing — Dermatologically and ophthalmologically tested
Aqua Gel Lock Technology
The Dual Bio-Film system helps hold moisture at the skin’s surface, supporting lasting hydration while maintaining a light, comfortable texture. It combines moisturizing care with daily sun protection in one step.
Broad-Spectrum and Environmental Protection
MizuMi’s 7-Guard protection system is designed to address UVA1, UVA2, UVB, blue light, HEV light, infrared and pollution exposure. The formula has undergone in-vivo and in-vitro testing, with 13 tests conducted by institutions following international standards.
How to Use
Shake the bottle gently before use. Apply as the final step of your facial skincare routine, before makeup and approximately 15–20 minutes before sun exposure. Follow the packaging directions for the amount to apply and reapplication.
Product Details
- Brand: MizuMi
- Product: UV Aqua Lock Serum
- Net weight: 40g
- Sun protection: SPF50+ PA++++
- Texture: Lightweight, fast-absorbing Aqua-Serum
- Hydration: Up to 8 hours
- Key technology: Aqua Gel Lock with Dual Bio-Film
- Recommended use: Daily facial sunscreen and pre-makeup sun protection
- Testing: Dermatologically and ophthalmologically tested
Hydration results may vary depending on individual skin condition and use.
Couldn't load pickup availability
Shipping Information
Shipping Information
Orders are shipped directly from Thailand.
Delivery typically takes 7–12 business days depending on your location.
You will receive a tracking number once your order is shipped.
Authentic Products from Thailand
Authentic Products from Thailand
Every Maison Siam product is carefully selected locally in Thailand to ensure authenticity and quality.
Our mission is to share genuine Thai craftsmanship and everyday lifestyle products with customers around the world.
Shop With Confidence
Shop With Confidence
• Secure encrypted checkout
• Trusted global payment methods
• Carefully selected products from Thailand
• Dedicated customer support
Share this product
A Piece of Thailand, Delivered to You
Authentic Thai Craft & Culture
Behind every Maison Siam product is a story of Thai culture, craftsmanship and everyday life.
Our mission is to share these authentic discoveries with the world and bring the spirit of Thailand into your daily routine.
Frequently Asked Questions
How long does shipping take?
How long does shipping take?
Orders are shipped directly from Thailand.
Delivery usually takes 7–12 business days, depending on your location and local customs processing.
Once your order has been shipped, you will receive a tracking number so you can follow its progress.
Do you ship internationally?
Do you ship internationally?
Yes. Maison Siam ships worldwide so you can enjoy authentic Thai products wherever you live.
Shipping rates and delivery times are calculated automatically at checkout.
How can I track my order?
How can I track my order?
Once your order is shipped, you will receive an email with a tracking number.
You can use this number to monitor your delivery status at any time.
What payment methods do you accept?
What payment methods do you accept?
We accept all major credit and debit cards, as well as other secure payment options available at checkout.
All payments are processed through encrypted and secure payment systems.
What if I have a problem with my order?
What if I have a problem with my order?
Customer satisfaction is very important to us.
If you experience any issue with your order, please contact our support team and we will do our best to resolve the situation as quickly as possible.





