The protector I need depends on your skin type and phototype .
Type of skin
To know if your skin is dry, normal or oily, the first thing you need to know is the skin's moisture percentage. Depending on whether your skin is dry, normal or oily, you will need one or another product. Currently there are many ways to measure the skin's moisture percentage. Below we present a table that guides you about the normal humidity values that normal skin means. Below these values we say that the skin is dry and above these we say that it is oily. In tropical countries there are no seasons so we can adapt this table with respect to meters above sea level and temperature. We invite you to carry a table where you record the moisture values of your skin so you can keep track of your beauty treatments.
Nowadays it is possible to measure the moisture of our skin precisely with a digital skin moisture monitor and keep a record of our data. With this information you can know what type of protector to use and use your dermatocosmetic products with your goals in mind. reach normal humidity values throughout your body. Below you will find a table with the normal percentage ranges of humidity.
| Summer | Spring fall | Winter | |
| From 0 to 1000m above sea level (Hot climate) | From 1000m to 3000m above sea level in tropical zone (Temperate climate) | Greater than 3000 m above sea level (Cold climate) | |
| Temperature >24°C | Temperatures from 12°C to 24°C | Temperature <12°C | |
| Forehead | 40-60% | 35-55% | 30-50% |
| Eye contour | 50-60% | 45-55% | 40-50% |
| Cheeks | 40-60% | 35-55% | 30-50% |
| Palms of the hands | 50-65% | 45-65% | 40-55% |
| Arms | 45-55% | 40-50% | 35-45% |
| Hands | 40-60% | 35-55% | 30-50% |
skin phototype
"Skin color has become synonymous with beauty; it is considered that a person with tanned skin is more attractive, which is why, in many cases, prolonged exposure to the sun is carried out, with the consequent risk of presenting different degrees of erythema, melanoma, and even photoinduced skin cancer. Knowledge of the different phototypes can help take the necessary measures to avoid these disorders.
The phototype is the ability to adapt to the sun that each person has from birth, that is, the set of characteristics that determine whether a skin tans or not, and how and to what degree it does so. The lower this capacity is, the less the effects of solar radiation on the skin will be counteracted" [1].
References
[1] Marín, D., & del Pozo Carrascosa, A. (2005). [Permanent training in dermopharmacy] Skin phototypes. General concepts. Offarm: Pharmacy and Society , 24 (5), 136-137.