Sunscreens: An Overview

Everything You Need To Know To Choose The Right Product For Your Skin!

Sunscreen compounds can be classified into two main categories:

Physical filters

Physical blocks are substances with a particle size of about 200–400 µm that act by reflecting solar radiation. The most common example of physical (mineral) filters is Zinc Oxide and Titanium Dioxide.

Chemical filters

Chemical filters are characterized by the wavelength at the absorption maximum and by their absorption coefficient, which is a unit measure of a chemical filter layer’s ability to absorb light radiant energy.

Chemical filters have the advantage of being very elegant in cream Formulations —the product does not feel heavy, oily or leave a white film. However, chemical filters are known to cause contact dermatitis, and photosensitivity. The filters that most commonly cause such reactions include benzophenones (benzophenone-3 or oxybenzone), butyl methoxydibenzoylmethane, methoxycinnamate, methylbenzylidene-camphor and aminobenzoic acid.

Sunscreen Buzzwords

Now that you know the different classifications of sunscreens, it is important to understand how they work. Several popular buzzwords used in sunscreen marketing are starting to be regulated by the FDA, including

1 – Broad spectrum

Provide protection against both UVA and UVB radiation. For a sunscreen to be effective against erythema (redness and sunburn), it must contain filters that absorb UVB radiation. UVA protection also is key because  UVA is responsible for photo-aging and the skin appearance of actinic keratosis, as well as some forms of skin cancer.

2 – Water-resistant

The term “water-resistant” describes a formulation not easily washed off by contact with water, usually achieved by the incorporation of silicone oils, dimethicones and/or cyclomethicones.

3 – Waterproof

The term “waterproof” is not recognized by the FDA.

4 – Nanoparticles

Titanium dioxide and zinc oxide in nano size (with a particle size of 100 nm or less) are often used as UV filters. When incorporated into sunscreens, these nanoparticles avoid the formation of white residue typically left on the skin when the particles are larger in size.

However, in recent years, there has been a public concern in regard to the ability of nanoparticles to penetrate the skin and potentially cause harmful effects. The European Union requires the use of nanoparticles in cosmetic products be explicitly declared on product packaging and listed as a part of the ingredients. In the list of ingredients, the substances will be

Are you concerned about sun damage?

Over exposure to the sun can lead to skin cancer. Since sun damage accumulates over time, it’s never too late to start a sun protection regimen. Montaser helps repair and possibly even reverse these signs of skin aging, up to 90 percent of which are caused by the sun. The photo below is from one of our happy clients. Sun damaged has reduced after just four weeks!

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Daylight Defense Cream with UV(A/B) Skin Protector

Montaser Cosmeceuticals uses micro-sized Zinc oxide. Due to their small size, they do not leave a white deposit on skin, an advantage appealing to consumers. This unique lightweight formula acts as a barrier between the skin and the environment by creating a very high invisible Clear Zinc Board Spectrum (UVA and UVB) protection.

The product offers the very latest in hi-tech stem cell and peptide cosmetics science combined with native Australian herbs and the natural mineral goodness of mud harvested from the Dead Sea.

References

1. K Scharffetter-Kochaneck, P Brenneisen, J Wenk, G Herrmann, W Ma, L Kuhr, C Meewes, M Wlaschek, Photoaging of the skin from phenotype to

2. A Dupuy, A Dunant A, JJ Grob, Randomized controlled trial testing the impact of high-protection sunscreens on sun-exposure behavior, Arch

3. RM Sayre, N Kollias, RL Roberts, A Baqer, I Sadiq, Physical

4. EJ Collaris, J Frank, Photoallergic contact dermatitis caused by ultraviolet filters in different sunscreens, Int J Dermatol 47(S1)

5. JM Allen, CJ Gossett, SK Allen, Photochemical formation of singlet molecular oxygen in illuminated aqueous solutions of several  commercially

6. JF Nash, Human safety and efficacy of UV filters and sunscreen

7. C Szurko, A Dompmartin, M Michel, A Moreau, D Leroy, Photocontact allergy to oxybenzone: ten years of experience, Photodermatol Photimmunol