What is the SPF ?
refers to SPF (Sun Protector Factor) or in Portuguese FPS, sunscreen factor which is a factor related to protection from UVB rays and allowing you to increase Sun exposure time without a burn. For example, if 5 minutes is the time that a low phototype person takes solar erythema, ie red, a SPF 30 multiplies 30 times this time, ie it would take 150 minutes, two and a half hours. In practice it is not quite so because the protector application should be done in a generous amount and in a uniform layer. The amount to apply should be 2mg protector per cm2 of skin, which is equivalent to 1 teaspoon for the face or 3 fingers and a golf ball for the body. The SPF is universal and follows ISO regulations, and it is expected that a SPF 50 check the same degree of protection in Europe, Asia or America.
There are 4 levels protection:
- Low (SPF 6 to 10)
- Middle (SPF from 15 to 25)
- High (30 to 50)
- very high (50+)
We recommend using the top 30 to 50 or too high, 50+.
The protector should still be reapplied from 2 in 2 hours, after bathing or dried with a towel and after intense perspiration. Do not forget that UVB radiations are responsible for burns and tan, allergic reactions and skin cancer.
What is PPD (Persistent Pigment Darkening) ?
The grape radiation protection factor is given by the PPD factor that is usually not referred to in protectors packaging. The European Union recommends that it is at least 1/3 of the SPF - in a SPSF 30 protection against UVA rays would be at least 10. When protectors meet this requirement, they have the UVA symbol within a circle .
protection against grape radiation is very important because it is responsible for photoaging (changes in collagen and elastin fibers, wrinkles, sagging), sun intolerance and skin pigmentation (melasma, dark spots).
What are filters ?
Filters are the physical or chemical substances present in sunscreens that are responsible for their protective power in the face of radiation and which are present in formulations beyond excipients such as water and other actives such as hilauronic acid , niacinamide, antioxidants and others.
What are the differences between chemical and physical filters ?
Chemical filters (Octocrilene, Avobenzone, Octinoxate, Oxybenzone, Hemosalat, Tinosorb, Meroxyl):
- Absorb radiation by modifying it and emitting it back
- They have a larger UnV protection spectrum besides UVB
- allow you to formulate more fluid, transparent and without white residue sunscreens
- may have greater irritating potential.
physical filters (titanium dioxide, zinc oxide):
- absorb radiation, emit it and reflect some of it
- have UVB protection spectrum
- may leave white residue and thicker protectors.
Mineral protectors are better than physicists ?
The answer is depends: physical filters should be preferred in babies up to 1 year of age, in some specific cases as very sensitive and reactive skin and in desp
How to choose sunscreen:
When choosing a protector must meet several factors such as:
- Have Largo Protection Skull UVB, UVA, IV, HEV, Blue Light
- Be water resistant
- Have good ophthalmic tolerance (not irritating the eyes)
- Have sufficient capacity for application time (vacation, whole family)
- Contain in the antioxidant and repairer active formula
- be the right thing for that circumstance (practice of water sports, daily use)
- be directed to a given stage of life (babies, children)
And remember that the best protector for you has to be one that ADORE, as in the case of the face will use it every day. It must therefore be pleasant sensorially and have a smell, texture and finish that you like and make your skin comfortable so you want to put it every day.
Body protectors can be used on the face ?
In theory yes, but, since the skin of the face and body have different characteristics, if possible use two different. In addition, face protectors may have color and are generally less greasy, formulated with softer ingredients and without added perfume. They are still useful in cases of special needs or pathologies such as acne, rosaceae, blemishes, wrinkles, sensitive eyes.
I can use last year's sunscreen ?
Once again, it depends. If it is for opening, within the expiration date and conserved under high temperatures and moisture - yes. If it has already been used you have to check if it is on time and after opening period (PPA) that appears in the packaging with symbol of an open beef and the indication of months (usually 6 months to 12 months), if it was well stored and if does not have changes in smell, color, texture and consistency. should also be rejected if noticing that your Skin turns red In a short time (AD loss filters may have occurred).
How to store sunscreen ?
Keep in a fresh and dry place (the refrigerator and bathroom do not serve) at room temperature and far from direct sunlight. Do not leave it in the sun on the towel, close it well and place it in the shadow. Avoid leaving the heat in the car to avoid alteration of filters.
What does it mean to be water resistant ?
Being water resistant means remain effective for 40 minutes on the skin and be very water resistant, remain effective for 80 minutes . Very water resistant should be favorite for children and score
If you use protector I can be exposed to the sun as long as you want ?
No, it should be exposed to the sun only when you can't avoid it as you shower, dry yourself and be in the shadow whenever possible. You should also take additional care likeWear hat of wide tabs or cap, sunglasses ,dark clothing (t-shirt), also lips (Balms or lip sticks with SPF), the ears and the back of the hands and feet. Also avoid exposure during 12 and 16 hours or in low phototypes between 11 and 17 hours . Do not attend solarium.
When I don't need to use sunscreen ?
No need to use sunscreen:
- At night
- In the shower
- In a cave. 😄
