what is spf
SPF is called Sun Protection Factor. It is a scale that measures the ability of sunscreens to protect the skin from damage from ultraviolet rays. If your unprotected skin turns red within 20 minutes, you should use a sunscreen with SPF 15. It keeps the skin safe for about five hours.
These 4 Deadly Damages Happen to Skin by Not Applying Sunscreen, So Start Incorporating It Into Your Routine From Today
Do not make sunscreen with natural oil
Natural oil does not absorb UV
Research has shown that natural oil is not a suitable ingredient to block ultraviolet rays. Aloe vera, canora oil, citronella oil, coconut oil, olive oil and soybeans do not have the ability to block ultraviolet rays. Therefore, sunscreen made from these ingredients is unable to protect the skin.
Natural oil does not absorb UV in the correct wavelengths
The study also found that only substances containing vitamin E are effective at absorbing ultraviolet rays. But that is only possible if the wavelength is smaller than 310 nanometers. However, it is unable to block most ultraviolet rays. The UVB and UVA range of sunlight is 290-400 nanometers.
Make cold cream for winter with almond oil, skin will be soft like butter
SPF is not found in natural oil
Whether natural oil has enough SPF or not, it hasn’t been tested in the lab yet. According to a study, sunscreen products are only marketed after SPF testing. Therefore, one should always buy sunscreen in the market after seeing the level of SPF. In addition, sunscreen made from natural oils should not be used at home.