Obama tried to make us suck less by attempting to get the FDA to approve the international filters, but the fda was a jerk about it and denied everything, so now we suck a lot and are the worlds laughing stock when it comes to sun protection. Why doesnt the USA have any good UVA rating systems? Most sunscreens labeled “broad spectrum” actually fail the stricter overseas UVA tests. Why is it labled SPF 30,40,50 etc if its not protecting me from UVA?īecause in the USA “SPF” and SPF testing only represents the protection it has fom the suns UVB burning rays. UVA just busts through your window glass and forces itself upon you and penetrates you Atleast UVB respects you while you’re in your house wanting to unwind and get some privacy.
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Upwards of 75% of UVA rays penetrate through clear glass and then penetrates your skin with ease. Because of the way UV index is calculated it only represents the likelihood you will get burned from the suns UVB rays and can drastically under represent UVA It doesnt care if you live in a cold country with a low UV index. It doesnt care if its cloudy- uva penetrates through clouds and damages your skin UVA is a jerk and doesn’t give buck about anything. Internationally, UVA rating is reflected by PPD or PA+ systems They also have been found to do worse, they can cause cancer. This is why wearing sunscreen throughout your childhood, teens and twenties is important for keeping youthful skin later on. The premature aging and other photodamage caused by UVA takes decades to show up on your face since the damage is dermal.
UVA dermal damage is a main cause of premature photoaging. The persistent pigment darkening it causes can cause post inflammatory hyperpigmentation and darken melasma and this is shown almost immediately. They are sometimes called the “aging rays” because the penetrate far deeper into the skin than UVB can. You may askĬritical Wavelength / UVA is the suns longer less energetic rays. The City Sunscreen Serum SPF 30 is has avobenzone and is octinoxate-free but has less octocrylene than avobenzone so the stability is uncertain. The supergoop sun defying sunscreen oil contains over twice as much Octinoxate as avobenzone. So does the Healthy Glow Sunless Tan SPF 40 The supergoop unseen sunscreen not only has octinoxate and avobenzone together, it actually has more octinoxate than avobenzone. If Octinoxate is in a sunscreen you use, make sure the UVA filter is something that it doesn’t degrade, or degrade it, like Zinc Oxide. Avobenzone is recognized as safe and unharmful to the skin as long as it is stabilized- good thing is many stabilizers exist.īad thing - in the USA, popular brands like Supergoop and Boscia combine it with octinoxate which rapidly degrades avobenzone.Īvobenzone should be combined with UVB filters like Octocrylene, Mexoryl Xl or Oxybenzone which photostabilize avo. Supergoop remains popular here despite it commiting one of the biggest no-nos - combining Octinoxate and Avobenzone in the same sunscreenĪvobenzone is a great organic (“chemical”) UVA sunscreen filter used world wide. Link - because people click on PSA threads more often if they have a picture on the side. Posts without a valid tag will be removed by Automoderator. Megathreads HG threads No/Low Buy threads Routine megathreads Referral threads Research threadsĪsking a question? Check out our Daily Help Thread!
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