Chemical filters offer more coverage against UVA and UVB rays than mineral sunscreens. The range of protection will depend on the particular filters and their stability. (For example, avobenzone protects against the full spectrum of UVA rays.)
What sunscreen ingredients protect against UVA?
Avobenzone and zinc oxide are the two best UVA filters in American sunscreens, providing the desired protection from free radical formation and titanium dioxide is moderately effective at protecting against UVA rays.
Is chemical or physical sunscreen better for UVA?
A physical sunscreen is often heavier and thicker on the skin than a chemical sunscreen with the same SPF. Therefore, physical sunscreens might not be the best choice for oily or acne-prone skins. Additionally, mineral actives alone often offer less protection from damaging UVA radiation than chemical filters.
Do all sunscreens protect against UVA UVB?
Only Broad Spectrum Sunscreens also protect you from UVA rays, the type that cause suntan and skin aging. Remember, UVB = burn, UVA = aging. The US and Canada do not require that sunscreens offer any UVA protection.
What ingredients to avoid in sunscreens?
Here are 6 questionable common chemical sunscreen ingredients:
- Oxybenzone, known as benzophenone-3, a hormone disrupter.
- Avobenzone, also a benzophenone.
- Homosalate, another hormone disruptor.
- Octinoxate, known as octyl methoxycinnamate, a hormone and endocrine disruptor.
- Octisalate, it stabilizes avobenzone.
Does titanium dioxide protect against UVA?
Titanium Dioxide stops most UVA rays before they reach your skin. Every Blue Lizard Sunscreen that contains Titanium Dioxide is also made with Zinc Oxide to provide true broad spectrum protection from UVA and UVB rays.
Does chemical sunscreen last longer than mineral?
Your sunscreen will theoretically last longer since they break down when they deflect UV rays! It’s a simple trick. Zinc oxide particle breakdown is slower than chemical UV filter breakdown. It’s sort of like you get more “wear and tear” from your zinc oxide product than a chemical product.
Which is better mineral or chemical sunscreen?
“[Mineral sunscreens] are much safer for people who are concerned about long-term exposure to chemical ingredients,” Ploch says. Mineral sunscreens are also ideal for children, people with sensitive skin, and people with melasma. “The heat dissipation of chemical sunscreens can exacerbate melasma,” Ploch explains.
Do physical sunscreens absorb UV?
Physical sunscreens, or “sun blocks,” create a barrier on the skin that filters out UV rays, while chemical sunscreens absorb and scatter the sun’s harsh UV rays.
Can I use both physical and chemical sunscreen?
Physical and chemical sunscreens can be used together.
“Most stable sunscreens with broad spectrum coverage take advantage of the benefits of both types of ingredients,” confirms Dr. Lain.
Is zinc better than sunscreen?
While both offer broad spectrum protection, zinc oxide offers better UVA protection (UVA1 and 2) than titanium dioxide (UVA2). Generally considered safer and better than chemical sunscreens, they’re particularly recommended for sensitive skins.