SkinCeuticals Physical Fusion UV Defense SPF 50
- Regular price
- $66.00
- Sale price
- $66.00
- Regular price
- $66.00
Physical Fusion UV Defense SPF 50 is a lightweight, 100% mineral sunscreen ideal for all skin types, including sensitive skin, delivering broad-spectrum protection with a radiance-enhancing tint.
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Description
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Key Benefits
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Frequently Asked Questions
Description
Size: 50 ml / 1.7 fl. oz.
Skin Types: All skin types, including dry and sensitive
Concerns: Sun protection · Uneven skin tone · Dullness · Sensitive skin
Tinted Mineral Sunscreen with Radiance-Enhancing Finish
Physical Fusion UV Defense SPF 50 is a lightweight, 100% mineral sunscreen fluid designed to defend the skin against UVA and UVB rays while boosting natural radiance. Featuring a universal tint, it adapts to most skin tones without leaving a white cast, promoting a more even, luminous complexion. This sheer formula contains translucent color spheres for a healthy glow and artemia salina, a marine plankton extract that helps increase skin’s resistance to UV- and heat-induced stress. Dermatologist-tested, non-comedogenic, and suitable even for the most sensitive skin.
Science Behind Sheer Physical UV Defense SPF 50
The Difference Between UVA + UVB Rays
Protection from UV radiation is an essential step in maintaining skin health. Two types of UV rays, ultraviolet A (UVA) and ultraviolet B (UVB), penetrate the atmosphere and can accelerate visible signs of aging and increase the risk of skin cancer.
UVA rays are associated with accelerated aging and can penetrate through windows and clouds.
UVB rays cause sunburn by damaging the epidermis, causing redness, blistering, while increasing the risk of cancer.
To decrease the risk of the damage from rays, apply Sheer Physical UV Defense daily.
TIP: Boost Environmental Protection to protect skin from environmental aggressors, always pair Sheer Physical UV Defense with an antioxidant.

Key Benefits
How to use
Ingredients
Frequently Asked Questions
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Let customers speak for us
SkinCeuticals® Physical Fusion UV Defense SPF 50: The Weightless Mineral Shield.
Say goodbye to thick, chalky white sunscreens. SkinCeuticals Physical Fusion UV Defense SPF 50 is a groundbreaking, 100% physical sunscreen formulated with a unique "shake-to-use" weightless fluid. Featuring translucent color spheres, it seamlessly adapts to every skin tone without leaving a white cast. Enhanced with Artemia Salina—a plankton extract that boosts the skin's resistance to UV and heat stress—it delivers unmatched broad-spectrum protection while leaving a sheer, radiant, and even finish.
Why Physical Fusion Stands Out
- 100% Mineral Defense: Uses exclusively Zinc Oxide and Titanium Dioxide to sit on top of the skin and physically reflect UV rays, avoiding the irritation of chemical filters.
- No White Cast: The translucent color spheres intuitively adapt to a vast range of skin tones, providing a sheer, unifying tint that blurs imperfections.
- Artemia Salina Innovation: Sourced from extreme environments, this plankton extract is clinically proven to increase the skin's defense against UV and heat-induced stress.
The 4 Pillars of Physical Fusion
The SkinCeuticals Core Routine
Physical Fusion is the final, essential step in the SkinCeuticals methodology to seal in your clinical ingredients: Prevent, Correct, and Protect.
Step 1: Prevent
Step 2: Correct
Step 3: Protect
Expert Answers: Physical Fusion FAQ
Does this mineral sunscreen leave a white cast?
No. This is the hallmark of Physical Fusion. Unlike standard thick zinc sunscreens, it uses translucent color spheres that adapt to your skin tone. It rubs in completely sheer, leaving a radiant, even finish on all Fitzpatrick skin types without any ghosting or white cast.
Why do I need to shake it before using?
Because it is a 100% mineral formulation without thick, heavy chemical binders, the active zinc and titanium particles naturally settle in the fluid. Shaking the bottle activates the steel ball inside, perfectly suspending the minerals and tint for an even application.
Is this safe for acne-prone or oily skin?
Yes, highly recommended. It is completely non-comedogenic, meaning it will not clog your pores. The ultra-lightweight fluid dries down to a comfortable finish that won't make oily skin feel suffocated or greasy.
Can I use Physical Fusion after microneedling or a chemical peel?
Yes. Because it uses 100% physical/mineral filters (and zero chemical filters), it does not absorb heat. It is widely recommended by dermatologists for post-procedure protection because it is exceptionally gentle and will not sting or irritate compromised skin.
Does this replace my daily foundation or concealer?
While it is not a full-coverage foundation, the sheer tint provides a beautiful "blurring" effect that evens out minor redness and imperfections. Many users find it provides enough coverage to replace their daily tinted moisturizer or light foundation.
Is it water or sweat resistant?
Yes. SkinCeuticals Physical Fusion UV Defense SPF 50 is clinically tested to be water-resistant and sweat-resistant for up to 40 minutes. You should reapply immediately after towel drying, swimming, or heavy sweating.
Can I wear this underneath makeup?
Absolutely. Because of its weightless fluid texture, it acts as a phenomenal, smoothing primer. Let it set for a few minutes after application, and your foundation will glide over it seamlessly without pilling.
Is Physical Fusion safe for use during pregnancy?
Yes. Dermatologists and OBGYNs typically recommend switching from chemical sunscreens to 100% physical (mineral) sunscreens during pregnancy. As always, consult your healthcare provider, but this is widely considered a pregnancy-safe SPF.
Need Help Building Your Skincare Routine?
Connect directly with a WeDoSkin clinical expert for a complimentary consultation. We'll help you pair Physical Fusion with the perfect antioxidant to maximize your environmental defense.
Contact Our Skincare Experts