There are four basic types of healthy skin : normal, oily and combination skin . SKIN TYPE is determined by genetics. The condition of our skin can, however, vary greatly according to the various internal and external factors it is subjected to.
NORMAL SKIN
This skin is
neither too dry not too oily. It has regular texture, no imperfections and a
clean, soft appearance, and does not need special care.
SENSITIVE SKIN
Sensitive
skin is more prone to react to stimuli to which normal skin has no reactions.
It is a fragile skin, usually accompanied by feelings of discomfort,
such as heat, tightness, redness or itching. This type of skin loses its
barrier (or protective) function, making it easy for microorganisms and
irritant substances to enter it, and increasing the possibility of having an
infection and allergic reactions. It is a delicate skin that needs more
care to fight dryness, roughness and its usual appearances. Sometimes, it is
referred to as irritated skin instead of sensitive, but these terms are
synonymous and there are no dermatological differences differences between them.
DRY SKIN
In many cases, dry
skin is caused by external factors such as the weather, low air
humidity and immersion in hot water, and it is usually temporary.
However, for some people it may occur more often and even be a lifelong
condition. Since dry skin can crack
leaving it more exposed to bacteria, although in general this is not serious,
it may cause other skin disorders, such as eczema, or be more prone to infections
if not properly managed.
Dry
skin signs and symptoms may vary depending on different factors such as age,
health status or their cause. It is
generally characterized by a feeling of tightness and roughness. It may also
acquire an ashy gray color, with occurrence of desquamation, itching, redness
and small cracks. Cracked skin is usually observed
in very dry skin and presents small cracks, which, in more serious cases, may
be deeper and even bleed.
Atopic skin is a skin disease
characterized by dry skin that leads to desquamation and irritation and causes
upsetting symptoms, such as itching. The
main cause is genetic predisposition, although other factors may trigger its
occurrence or aggravate the condition as well, which may be environmental,
allergic, related with food and even with some clothes.
OILY SKIN
Oily skin has a
porous, humid and bright appearance3. It is caused by
excessive fat production by sebaceous glands, and usually determined by genetic
and/or hormonal causes, It is frequent in
adolescents and young people under 30 years old3, and usually related with
the occurrence of acne.
COMBINATION SKIN
Based on its location, it
presents characteristics of both dry and oily skin since the
distribution of sebaceous and sweat glands is not homogeneous. The area with
more oil is usually the T- zone (forehead, nose, and chin), while the skin on
the cheeks is normal or dry.
SCALY SKIN
Repeated skin irritation due to environmental factors, such as
the sun, the wind, dryness or excessive humidity, may cause skin desquamation, that is the
detachment of big scales from the epidermis, which sometimes look like fine
dust. However, desquamation may also be the result of some condition, such as
an allergic reaction, a
fungal or staphylococcus infection, an immune system disorder or cancer, and of
oncological treatments. In these cases, desquamation is usually accompanied by
itching.
RED SPOTS
There is a large number of dermatological causes and diseases
for the appearance of red spots or
rash, including infections, heat, allergens, immune system disorders
and medications.
SKIN MOLES
Moles are dark dots or spots on the skin that usually appear during childhood and adolescence.
They are caused by groups of pigmented cells. In general they are harmless, but
it is best to check them with a dermatologist if they change size, shape or
color, or if itching or bleeding occurs, since some may become cancerous12.
In
general, it is important to pay attention to skin appearance because,
regardless of the type of skin you have, there are certain characteristics that
could be a sign of a skin problem
References
1. Roberts, W.E. Skin Type Classification Systems Old and New.
Vol. 27, Dermatologic Clinics. Dermatol Clin; 2009 Oct. p. 529–33.
2. Gupta, V.,
Sharma, V.K. Skin typing: Fitzpatrick grading and others. Clin Dermatol. 2019
Sep;37(5):430–6.
3. American
Association for the Advancement of Science (AAAS). Determine Your SkinType.
Science NetLinks [Internet]. [Cited 2020 Mar 10]. Available at: http://sciencenetlinks.com/student-teacher-sheets/determine-your-skin-type/
4. Mayo Clinic.
Moisturizers: Options for softer skin [Internet]. 2019 Oct 18. Available at: https://www.mayoclinic.org/diseases-conditions/dry-skin/in-depth/moisturizers/art-20044232
5. Berardesca,
E., Farage, M., Maibach, H. Sensitive skin: An overview. Vol. 35, International
Journal of Cosmetic Science. Int J Cosmet Sci; 2012. p. 2–8.
6. Richters,
R., Falcone, D., Uzunbajakava, N., Verkruysse, W., Van Erp, P., Van De Kerkhof,
P. What is sensitive skin? A systematic literature review of objective
measurements. Vol. 28, Skin Pharmacology and Physiology. S. Karger AG; 2014. p.
75–83.
7. Mayo Clinic.
Dry Skin [Internet]. 2019 Aug 20 [cited 2020 Feb 19]. Available at: https://www.mayoclinic.org/diseases-conditions/dry-skin/symptoms-causes/syc-20353885
8. Mayo Clinic.
Atopic dermatitis (eczema) [Internet]. 2018 Mar 06. Available at: https://www.mayoclinic.org/diseases-conditions/atopic-dermatitis-eczema/symptoms-
causes/syc-20353273
1. Roberts, W.E. Skin Type Classification Systems Old and New.
Vol. 27, Dermatologic Clinics. Dermatol Clin; 2009 Oct. p. 529–33.
2. Gupta, V.,
Sharma, V.K. Skin typing: Fitzpatrick grading and others. Clin Dermatol. 2019
Sep;37(5):430–6.
3. American
Association for the Advancement of Science (AAAS). Determine Your SkinType.
Science NetLinks [Internet]. [Cited 2020 Mar 10]. Available at: http://sciencenetlinks.com/student-teacher-sheets/determine-your-skin-type/
4. Mayo Clinic.
Moisturizers: Options for softer skin [Internet]. 2019 Oct 18. Available at: https://www.mayoclinic.org/diseases-conditions/dry-skin/in-depth/moisturizers/art-20044232
5. Berardesca,
E., Farage, M., Maibach, H. Sensitive skin: An overview. Vol. 35, International
Journal of Cosmetic Science. Int J Cosmet Sci; 2012. p. 2–8.
6. Richters,
R., Falcone, D., Uzunbajakava, N., Verkruysse, W., Van Erp, P., Van De Kerkhof,
P. What is sensitive skin? A systematic literature review of objective
measurements. Vol. 28, Skin Pharmacology and Physiology. S. Karger AG; 2014. p.
75–83.
7. Mayo Clinic.
Dry Skin [Internet]. 2019 Aug 20 [cited 2020 Feb 19]. Available at: https://www.mayoclinic.org/diseases-conditions/dry-skin/symptoms-causes/syc-20353885
8. Mayo Clinic.
Atopic dermatitis (eczema) [Internet]. 2018 Mar 06. Available at: https://www.mayoclinic.org/diseases-conditions/atopic-dermatitis-eczema/symptoms-
causes/syc-20353273
1. Roberts, W.E. Skin Type Classification Systems Old and New.
Vol. 27, Dermatologic Clinics. Dermatol Clin; 2009 Oct. p. 529–33.
2. Gupta, V.,
Sharma, V.K. Skin typing: Fitzpatrick grading and others. Clin Dermatol. 2019
Sep;37(5):430–6.
3. American
Association for the Advancement of Science (AAAS). Determine Your SkinType.
Science NetLinks [Internet]. [Cited 2020 Mar 10]. Available at: http://sciencenetlinks.com/student-teacher-sheets/determine-your-skin-type/
4. Mayo Clinic.
Moisturizers: Options for softer skin [Internet]. 2019 Oct 18. Available at: https://www.mayoclinic.org/diseases-conditions/dry-skin/in-depth/moisturizers/art-20044232
5. Berardesca,
E., Farage, M., Maibach, H. Sensitive skin: An overview. Vol. 35, International
Journal of Cosmetic Science. Int J Cosmet Sci; 2012. p. 2–8.
6. Richters,
R., Falcone, D., Uzunbajakava, N., Verkruysse, W., Van Erp, P., Van De Kerkhof,
P. What is sensitive skin? A systematic literature review of objective
measurements. Vol. 28, Skin Pharmacology and Physiology. S. Karger AG; 2014. p.
75–83.
7. Mayo Clinic.
Dry Skin [Internet]. 2019 Aug 20 [cited 2020 Feb 19]. Available at: https://www.mayoclinic.org/diseases-conditions/dry-skin/symptoms-causes/syc-20353885
8. Mayo Clinic.
Atopic dermatitis (eczema) [Internet]. 2018 Mar 06. Available at: https://www.mayoclinic.org/diseases-conditions/atopic-dermatitis-eczema/symptoms-
causes/syc-20353273
1. Roberts, W.E. Skin Type Classification Systems Old and New.
Vol. 27, Dermatologic Clinics. Dermatol Clin; 2009 Oct. p. 529–33.
2. Gupta, V.,
Sharma, V.K. Skin typing: Fitzpatrick grading and others. Clin Dermatol. 2019
Sep;37(5):430–6.
3. American
Association for the Advancement of Science (AAAS). Determine Your SkinType.
Science NetLinks [Internet]. [Cited 2020 Mar 10]. Available at: http://sciencenetlinks.com/student-teacher-sheets/determine-your-skin-type/
4. Mayo Clinic.
Moisturizers: Options for softer skin [Internet]. 2019 Oct 18. Available at: https://www.mayoclinic.org/diseases-conditions/dry-skin/in-depth/moisturizers/art-20044232
5. Berardesca,
E., Farage, M., Maibach, H. Sensitive skin: An overview. Vol. 35, International
Journal of Cosmetic Science. Int J Cosmet Sci; 2012. p. 2–8.
6. Richters,
R., Falcone, D., Uzunbajakava, N., Verkruysse, W., Van Erp, P., Van De Kerkhof,
P. What is sensitive skin? A systematic literature review of objective
measurements. Vol. 28, Skin Pharmacology and Physiology. S. Karger AG; 2014. p.
75–83.
7. Mayo Clinic.
Dry Skin [Internet]. 2019 Aug 20 [cited 2020 Feb 19]. Available at: https://www.mayoclinic.org/diseases-conditions/dry-skin/symptoms-causes/syc-20353885
8. Mayo Clinic.
Atopic dermatitis (eczema) [Internet]. 2018 Mar 06. Available at: https://www.mayoclinic.org/diseases-conditions/atopic-dermatitis-eczema/symptoms-
causes/syc-20353273
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