Working Factors of SPF in Sunscreen Lotions and How Does it Affect Our Skin.

Sun gives life, but it is also the one that damages our beloved skin. The mighty star emits ultraviolet rays that penetrate deep into the skin and causes damage—conditions like sunburn, tanning, and premature ageing, to name a few. 

All such conditions can be avoided by using a simple product called sunscreen. Though it is made with several ingredients, one major factor that makes it repel the sun’s damage is SPF or sun protection factor.

SPF is a way to understand the amount of damage done to the protected skin from UV radiation compared to the damage done on the vulnerable skin. Sun protection factor directly protects the skin from the UVA and UVB rays. 

Let’s understand this with a quick example. It takes only five minutes for your skin to be damaged from the sun; therefore SPF 50 can protect your skin for 150 minutes. Due to this reason, experts also suggest applying sunscreen at least every two hours. 

Working of SPF

Before you understand how SPF works, you should know how the sun damages the skin. The UVB rays emitted from the sun hurt the skin’s outer layer, whereas UVA rays penetrate the skin and reach the dermal layers. When sufficient SPF is applied to the skin, it either reflects the rays or absorbs them. The duration of protection depends on the SPF number and the harshness of the sunlight. SPF will be worn off quickly during noon as compared to the golden hours. 

SPF Number

You must have noticed that sunscreens always mention the SPF number. SPF 15, SPF 30, SPF 50, and more. All these numbers signify their capability of blocking the UV rays and protecting the skin.

The minimum you can get is SPF 15, and it blocks up to 93% of the UV rays. SPF 30 can do the same but for up to 97% effectiveness. 98% absorption of UV rays is that you will get from SPF 50. The rule says that the higher you move on the number scale, the better protection you will get from the best sunscreen lotion. 

Mineral or Physical SPF

There are different types of SPF used in the best sunscreens in India, and one of them is physical SPF. Sunscreens made with mineral SPF blocks and reflected the UV rays away from the skin. Physical SPF does not block the skin pores making it highly usable for people with skin acne.

Chemical SPF

The other one is the chemical SPF which is found in plenty of sunscreens. Unlike the physical SPF, this one gets absorbed in the skin and covers the UV light to heat, eradicating skin damage. 

UVB and UVA Protection 

UVB and UVA are two types of UV rays that damage the skin. General sunscreens only protect from UVB rays making the skin vulnerable from the other. However, broad-spectrum sunscreens protect the skin from both these rays. Lotus Herbal Sunscreen lotion is among those sunscreen that comes with broad-spectrum sunscreen giving protection from UVA and UVB. 

When choosing a suitable SPF, you should consider finding the SPF number and the type of SPF. Sunscreen lotion with SPF 50 is recommended for external use. Anything more is better, but it all depends on the harshness of the sunlight. Just get an even coat of sunscreen on your skin 20 minutes prior to heading out in the sun and reapply at least once every two hours for the best outcome. No matter what skin tone or skin type you have, sunscreen application is necessary and should be done to safeguard it. 

Sapna Singh

Sapna is working in the Tech & Science domain in one of the top universities. She has published research papers and case studies in Technology & Science. She is an avid blogger in the domain of Tech & Gadgets, finance, Business, Entertainment. you can also find him on social networking platforms.