Sunscreen might be the most underestimated anti-aging product

It may not technically be summer, but sunscreen is still applicable, especially in hotter climates.

The proper use of sunscreen is surrounded by a variety of myths, so board-certified dermatologist Dr. Jennifer Linder is setting the record straight.

The truth about sunscreen is that you need to wear it year round because you will be exposed to the harmful UV rays of the sun, according to Dr. Linder.

Sunscreen is for every age, even babies as young as six months. Water and sweat-proof sunscreens require reapplication because the term 'waterproof' is a misnomer, according to Dr. Linder.

A common myth is that higher SPF values will protect skin better; however, Dr. Linder says it is more about the ingredients zinc oxide, avobenzone, titanium dioxide and ecamsule which are UVA protectants.

SPF values pertain only to UVB protection, and a higher SPF value doesn't mean a huge increase in protection. SPF 15 blocks about 94 percent of UVB rays, but SPF 50 only blocks about 98 percent, according to Dr. Linder.

Even if your makeup has SPF, additional sunscreen is required, according to Dr. Linder. You can actually keep your skin looking young by taking precautions like wearing sunscreen.

Dr. Linder offers these facts about sunscreen:

1. Sunscreen is imperative year round, rain or shine, not just in the summer months
2. Protect your child's delicate skin by applying sunscreen daily.
3. Waterproof sunscreens do not exist; look for water/sweat resistant sunscreen for optimal outdoor coverage.
4. The high numbered SPFs do not allow for more time outdoors or in between applications; reapplication is necessary every two hours with all sunscreens regardless of SPF number.
5. Makeup with an SPF does not provide adequate UVA/UVB coverage; always apply a broad-spectrum sunscreen before makeup.