Sun cream ppd

Do you want to know the labels on sunscreen packages? Let's tell you what the most common abbreviations mean.

1. Sun: friend or foe
2. UVA and UVB rays: what is the difference
3. 3 reasons to use sunscreen all year round
4. What are SPF and PPD in sunscreens?
5. What does SPF mean in creams?
6. Sunscreen with PPD
7. Review of creams with SPF and PPD

Sun: friend or foe

In the last century, tanning was considered a sign of health, high status and the ability to relax carefree. Especially for those who live in northern latitudes. And yet the sun can be considered our friend rather conditionally.

Yes, it promotes synthesis vitamin D, the deficiency of which causes problems with the immune system, musculoskeletal system, and psycho-emotional state.

On the other hand, dermatologists are sure that tanning is never healthy, because ultraviolet radiation:

1. increases the risk of developing melanoma;
2. promotes photoaging;
3. provokes hyperpigmentation.

So if you are serious about your health, take care of UV protection, and not only in summer.

In the last century, the sun and the accompanying tan were considered a sign of health, high status and carefree relaxation. © iStock

UVA and UVB rays: what is the difference

Ultraviolet rays are of two types − A And IN.

There is also a third type - UVC rays, but we won’t talk about them, since this is solar radiation, which is filtered by the ozone layer of the atmosphere and does not reach the Earth’s surface.

Here is some information about the first two types of radiation.

UVA rays

Penetrate through clouds and glass, do not cause burns, but are dangerous for the skin because:

1. destroy collagen and damage cell DNA;
2. lead to premature aging;
3. cause neoplasms.

UVB rays

They stimulate the formation of melanin in the skin and are responsible for tanning. They also cause sunburn and can cause skin cancer.

“The amount of UV rays in the atmosphere depends on the season, time of day and other factors,” says Elena Eliseeva, medical expert at Vichy. — In summer and closer to the equator there are more of them, in winter and closer to the poles there are fewer. This is why many people believe that in winter in central Russia there is no point in using photoprotection.

But less does not mean that there is no radiation at all. And in people prone to hyperpigmentation or dermatoses, even winter doses of the sun can cause unpleasant changes in the skin.

In addition, UVA rays are always present in the solar spectrum, and their amount is little affected by the time of year or place of residence.”

UVA and UVB rays. © iStock

3 reasons to use sunscreen all year round

1. Even in winter, 80% of the rays reflected from the snow can damage the skin.
2. Harmful UVA rays penetrate through car windows, office and apartment windows.
3. In an airplane at high altitude, the radiation intensity increases many times.

When deciding whether to apply SPF cream on a sunny autumn or winter day, look at the UV index value in the weather forecast. If it is less than two, protection will not be needed.

What are SPF and PPD in sunscreens?

It is clear that sunscreen should be on hand all year round, the only difference is the SPF level. What does the manufacturer mean by the mysterious abbreviations SPF, PPD or PI (in Asian sun protection products)?

SPF - Sun Protection Factor

Shows how effectively the sun filter blocks UVB rays. That is, it displays the degree of protection against sunburn.

For example, SPF 50+ means that the product blocks more than 98% of type B rays. But the skin darkens even with such a high protection factor, especially if it is initially prone to tanning.

PPD - Persistent Pigment Darkening

In Asia it is designated as PI. Indicates the degree of protection against UVA rays, that is, photoaging, the appearance of age spots and other negative changes.

Sunscreen should be present in your cosmetic bag all year round. © iStock

What does SPF mean in creams?

When choosing a sunscreen you should consider:

1. your phototype;
2. skin type;
3. degree of protection.

The last point deserves special attention - the degree of protection against UV rays.

1. SPF 15 blocks 93% of UV rays, and 7% still penetrates the skin.
2. SPF 30 - 97% UV rays.
3. SPF 50 and above - 98% UV rays.

Sunscreen with PPD

As we said above, the PPD index is used to indicate the degree of protection against UVA rays. PPD has a numerical value.

“The maximum PPD that scientists were able to create is 42. A factor of 8 or higher is considered safe. But the main thing in the cream is not even this, but the ratio of SPF and PPD levels, explains Elena Eliseeva. — It should tend to 2.5 or 3, then on the packaging you can see the marking UVA or broad spectrum - “broad spectrum of radiation.”

Only the presence of one of these designations guarantees complete protection of the skin both from sunburn and from other negative effects on its health.”

When deciding whether to apply SPF cream on a sunny day or not, look at the UV index in the weather forecast. © iStock

Review of creams with SPF and PPD

Ultra-light facial fluid Anthelios XL, SPF 50+/PPD 42, La Roche-Posay

Suitable for sensitive and allergy-prone skin, protects against UVA and UVB rays. Photostable formula resists water for 40 minutes. Protects against photoaging, pigmentation, photodermatosis.

Tinting treatment against age spots Capital >

Has a triple effect on the skin:

protects from solar radiation.

Sunscreen Brightening UV Defense, SPF 30, SkinCeuticals

Protects the skin from type A and B rays, helps fight hyperpigmentation, and moisturizes. Be sure to update your protection every two hours.

Sunscreen lotion Activated Sun Protector For Face, SPF 50, Kiehl’s

A high degree of protection against broad-spectrum rays, water resistance and non-greasy texture make the lotion convenient for use on the beach. Contains no oils, fragrances, parabens or silicones.

Cream Ambre Solaire “Expert protection”, SPF 50, Garnier

A non-greasy, waterproof face and body cream that protects sensitive skin with its hypoallergenic formula. Absorbs well and does not leave a greasy film.

In a natural desire to protect the skin from the harmful effects of ultraviolet radiation, we are trying to find a reliable remedy. And the beauty industry is meeting consumer demand by improving sunscreen formulas. One of the new products is products with PPD.

PPD and SPF: what's the difference?

There are 3 types of ultraviolet radiation:

1. UVC - these short-wave rays are the most dangerous, but, fortunately, they are mostly blocked by the ozone layer and do not reach the earth's surface.
2. UVB is medium wave rays that affect only the upper layers of the skin. They are the ones that cause redness and burns after tanning in the sun or in a solarium, and can also cause cancer.
3. UVA - long-wave rays that penetrate into the deep layers of the skin, stimulate the production of melanin (the pigment that produces tanning). A-spectrum radiation is a factor that provokes early aging and increases the risk of developing cancer.

All sunscreens can be divided into 2 categories:

1. those that protect only from type B rays;
2. those that protect from both A- and B-radiation.

The SPF (Sun Protection Factor) factor provides protection against B-spectrum rays, and the PPD (Persistent Pigment Darkening) factor provides protection against type A radiation.

According to cosmetologists, a good sunscreen should provide protection against rays of both spectrums, that is, in addition to SPF, it should also contain a PPD factor. The use of such products is recommended for everyone who is responsible for their health.

Dermatologists and cosmetologists note that no sunscreen can provide one hundred percent protection from UV exposure. Therefore, it is recommended to remember other precautions: light-colored clothes made of natural materials that hide the body, caps and hats with wide brims, sunglasses, tanning only at safe times (before 10–11 am or after 16–17 pm).

How to find out if a product has PPD factor

Not all products containing the PPD factor will have such a label on the packaging. The fact is that this is an indicator of “internal use”, which is necessary for manufacturers to assess product compliance with standards. It is only important for consumers to know that the product provides protection against broad spectrum rays (A and B). Therefore, we can say with confidence that a product contains PPD if the package contains:

1. UVA icon in a circle - this marking means that the product has a safe PPD level recommended by dermatologists;
2. abbreviation PA with plus signs - usually used on Asian-made products to indicate the degree of UVA protection;
3. Marking “broad spectrum of protection”, broad spectrum or UVA/UVB - such an inscription can only be on products that have successfully passed special studies on the effectiveness of protection against UVA and UVB.

I was puzzled by the search for sunscreens with PPD. I went around everything, well, no... All creams say UVA+UVB. As a result, what I see is UVA=PPD. That is, it turns out that this entire advertising campaign launched on TV is just another scam. As far as I understand, ultraviolet rays are divided into rays of spectra A, B, C. A - penetrates deep into the skin and can cause cancer, B - affects the skin externally (tanning, aging) C - I actually don’t know or know anything about it Is there any way to protect against it and is it necessary... PPD is precisely responsible for protection against spectrum A rays.

Interesting articles

Comments

So what cream is it? Brands of creams WHERE?

Sunscreen with PPD is a product that protects the skin from the negative effects of spectrum B rays, and SPF spectrum A (skin burns and that’s it). Dear faberlic consultants, without the appropriate education, do not mislead people, be healthy.

Excellent and instructive article, stay healthy.

Sunscreen with PPD is a product that protects the skin from the negative effects of spectrum A rays. These waves affect the deeper layers of the skin, which causes aging and the appearance of free radicals in cells. Choose a cream according to your skin type and use it correctly.

The article is excellent - it will be useful to many, BUT you can ask a consultant at any cosmetology store for your skin type and choose a sunscreen suitable for your skin!