Elizabeth Hale, MD, senior vice president of the Skin Cancer Foundation, says the report shows that it's important "not just to take for granted what is on the bottle".
SPF 15 filters out approximately 93 percent of all incoming UVB rays; SPF 30 filters out 97 percent; and SPF 50 filters out 98 percent.
To fill the newly empty space on its shelves, stores will be rolling out new brands with greater skin-health benefits throughout 2017, from preventive and proactive skin care with increased SPF, to more dermatological-approved options as well as additional natural and organic products. The UVB rays are responsible for sunburn and can also lead to skin cancer as well. In fact, of the 58 products in the ratings, 20 tested at less than half of their labeled SPF number.
"All exposed skin should be protected from the sun, either with clothes or with sunscreen", Polcari said by email.
The other products, including by brands such as Hawaiian Tropic and Nivea, but also high street own brands from the likes of Morrisons and Superdrug, passed the standardised SPF and UVA tests. Sunscreen makers only have to submit their results to the FDA if the agency requests it.
How Was The Test Conducted?The subjects were then asked to soak in a tub of water.
A day after the test, researchers studied the area where the sunscreen and subsequent UVB rays were applied for any kind of redness.
As per a research carried out by consumer watchdog Which?, Avon's Sun+Multi Protection Sun Lotion SPF30 (150ml) costing £10 failed to offer its claimed level of protection. This product retails for $36. Those include Equate's Sport Lotion SPF 50, Ultra Protection Lotion SPF 50 and Sport Continuous Spray SPF 30. "Other best buys include Trader Joe's Spray SPF 50+, which got a ideal score in our ratings, and Pure Sun Defense Lotion SPF 50", she notes. It retails for $6.
Dr. Beth Jonas, a chief scientist at the Personal Care Products Council, a trade associated that represents the sunscreen industry told Consumer Reports that the council disagreed with the organization's findings.
The researchers recommended that, to ensure their safety, consumers only buy sunscreen products containing chemical active ingredients, such as avobenzone, that have an SPF of at least 40.