Why Sunscreen Cause Acne? The Science of Clogging & The Solution | Rysun Biotech

Asking "why sunscreen cause acne?" It’s often occlusive oils or heat buildup. Rysun Biotech’s R&D experts explain the causes and how we manufacture breathable, non-comedogenic SPF.

Why Sunscreen Cause Acne? A Manufacturer’s Guide to "Breathable" Protection

Introduction
It is the ultimate skincare catch-22: You need sunscreen to prevent dark spots and aging, but applying it makes you break out. This leads to millions of consumers asking the frustrated question: "Why sunscreen cause acne?"

At Guangzhou Rysun Biotechnology, we believe protection shouldn't be a punishment. Founded in 2014 by Ivy Wong to solve the "inconsistent quality" of market products, and inspired by deep discussions with a Swiss anti-aging expert, we know that acne caused by sunscreen (Acne Cosmetica) is a sign of poor formulation, not a necessary evil.

Backed by our Research Institute and 20 leading scientists, we are here to deconstruct the chemistry of breakouts. Here is the scientific guide to why some SPFs clog pores and how Rysun manufactures advanced, acne-safe alternatives.

Reason 1: Comedogenic Ingredients (The Heavy Oils)

The most obvious answer to "why sunscreen cause acne" is the base formula.

• The Problem: Many generic manufacturers use heavy, cheap oils (like Isopropyl Myristate or Coconut Oil) to make mineral filters spreadable. These ingredients are highly comedogenic—they physically block the pore opening.
• The Rysun Solution: We use Non-Comedogenic Emollients. Leveraging our 105 product patterns, we formulate with lightweight, breathable fluids like Caprylic/Capric Triglyceride or Squalane. These provide "slip" without cementing the pores shut.

Reason 2: The "Heat Trap" (Chemical Filters)

Sometimes, the acne isn't from clogging; it's from inflammation.

• The Science: Chemical sunscreens work by absorbing UV rays and converting them into heat. For sensitive or acne-prone skin, this rise in surface temperature can trigger inflammation and increased sebum production, leading to breakouts.
• The Rysun Solution: For acne lines, we recommend Mineral Sunscreen (Zinc Oxide). Zinc is naturally anti-inflammatory and antimicrobial. Our R&D team uses advanced dispersion technology to create lightweight mineral fluids that protect without generating heat.

Reason 3: Occlusion (The Sweat Trap)

Water-resistant sunscreens form a film on the skin.

• The Problem: If the film is too thick or "plastic-like," it traps sweat and bacteria underneath it. This creates a breeding ground for P. acnes bacteria.
• The Rysun Solution: We engineer Breathable Films. Utilizing our 253 intellectual properties, we use advanced polymers that form a mesh-like shield. This keeps UV rays out but allows sweat and heat to escape, preventing the "greenhouse effect" that causes summer breakouts.

The Manufacturer’s Role: Testing for "Acne Safety"

How do we ensure a Rysun sunscreen won't cause breakouts? We test it.
"Inconsistent quality" often means inconsistent safety testing.

Rysun Biotechnology guarantees safety through:

• Microbiological Purity: We implement up to 50 inspection procedures. We ensure the formula is free from bacteria before it is bottled.
• Viscosity Control: We balance the texture to ensure it absorbs fully. A sunscreen that sits on top of the skin in a greasy layer is a magnet for dirt and pollution, which leads to acne.
• Soothing Additives: We believe in Practical Solutions. We infuse our acne-safe sunscreens with Niacinamide or Centella Asiatica to actively calm the skin while protecting it.

Conclusion

So, why sunscreen cause acne?
It happens when formulations are too heavy, trap heat, or use pore-clogging oils. It is a failure of texture engineering.

At Rysun Biotechnology, we combine over 10 years of manufacturing excellence with Swiss-inspired precision. We create sunscreens that are lightweight, breathable, and rigorousy tested to be non-comedogenic. Partner with us to manufacture a sun care product that clears the skin while it protects it.

FAQs

Q1: Is Mineral or Chemical sunscreen better for acne?
A: Mineral (Zinc Oxide) is generally better. It sits on the surface, reflects heat, and has soothing properties. Chemical filters can sometimes irritate inflamed acne lesions. Rysun specializes in "Invisible Zinc" for this exact market.

Q2: Does "Oil-Free" mean it won't cause acne?
A: Not always. An "oil-free" product can still contain silicones or thickeners that clog pores. It is better to look for "Non-Comedogenic." Rysun formulates specifically to meet non-comedogenic standards.

Q3: Can I skip moisturizer if my sunscreen breaks me out?
A: Yes, if you use a hydrating sunscreen. Rysun manufactures Hybrid Moisturizing Sunscreens that deliver hydration and protection in one step, reducing the number of layers on your face and lowering the risk of congestion.

Q4: Why do I break out only after washing off sunscreen?
A: You might not be removing it completely. Water-resistant films are hard to clean. Rysun advises brands to sell a Double Cleanse set (Oil Cleanser + Foam) alongside their sunscreen to ensure total removal and clear pores.