SKIN&LAB - Vitamin C Brightening Serum 30ml

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The below table identifies the skin cell count and aggregate cell mass estimates for a 70kg adult male (ICRP-23; ICRP-89, ICRP-110). [14] [15] [16] The subcutaneous tissue (also hypodermis) is not part of the skin, and lies below the dermis. Its purpose is to attach the skin to underlying bone and muscle as well as supplying it with blood vessels and nerves. It consists of loose connective tissue and elastin. The main cell types are fibroblasts, macrophages and adipocytes (the subcutaneous tissue contains 50% of body fat). Fat serves as padding and insulation for the body.

A scab is your body’s natural way of healing from an injury that broke your skin. If not handled properly, a scab can become infected. Here’s how to… READ MORE We’ll even talk about some functions our own skin performs that we may not know about! Functions of the Skin Scientists now know that humans do this ourselves. Although we don’t consciously process the scent information all around us, our behavior can change subconsciously based on whose sweat we are smelling. People are even more likely to be attracted to each other if they “smell” that they have complimentary immune systems, meaning that their children would have resistance to many diseases! Skin Structure Sherman, Vincent R. (2015). "The materials science of collagen". Journal of the Mechanical Behavior of Biomedical Materials. 52: 22–50. doi: 10.1016/j.jmbbm.2015.05.023. PMID 26144973. Todar K. "Immune Defense against Bacterial Pathogens: Innate Immunity". textbookofbacteriology.net . Retrieved 19 April 2017.You lose collagen and elastin as you age. This causes the skin’s middle layer (dermis) to get thinner. As a result, the skin may sag and develop wrinkles. It also causes a warm, brown, or red rash that spreads across the cheeks and bridge of the nose like butterfly wings and worsens in the sun. Excretion: sweat contains urea, however its concentration is 1/130th that of urine, hence excretion by sweating is at most a secondary function to temperature regulation. a b Filipe P, Silva JN, Silva R, Cirne de Castro JL, Marques Gomes M, Alves LC, etal. (2009). "Stratum corneum is an effective barrier to TiO2 and ZnO nanoparticle percutaneous absorption". Skin Pharmacology and Physiology. 22 (5): 266–275. doi: 10.1159/000235554. PMID 19690452. S2CID 25769287.

When you hear the word elastin, think elastic. This protein is found with collagen in the dermis, and is responsible for giving structure and support to your skin and organs. As with collagen, elastin is affected by time and the elements. Diminished levels of this protein cause your skin to wrinkle and sag. Keratin and Your Skin

Cutroneo KR, Sterling KM (May 2004). "How do glucocorticoids compare to oligo decoys as inhibitors of collagen synthesis and potential toxicity of these therapeutics?". Journal of Cellular Biochemistry. 92 (1): 6–15. doi: 10.1002/jcb.20030. PMID 15095399. S2CID 24160757. (subscription required) Mammals have hair – strands of protein that grow out of the skin, and which keeps the animal warm by trapping warm air close to the skin. Even humans have tiny, vestigial hairs all over our bodies. This is the layer responsible for wrinkles. The dermis is a complex combination of blood vessels, hair follicles, and sebaceous (oil) glands. Here, you'll find collagen and elastin, two proteins necessary for skin health because they offer support and elasticity. Fibroblasts are the cells you'll find in this layer, because they synthesize collagen and elastin. This layer also contains nerves that sense pain, touch, and temperature. Subcutis: The Skin's Fatty Layer

People with darker skin tones may notice brown discoloration or dry and swollen patches of dark skin. Itchy skin has many possible causes. If you have other symptoms (such as a rash or swelling) this might help to find the cause. The dermis is held together by a protein called collagen. This layer gives skin flexibility and strength. The dermis also contains pain and touch receptors. Subcutaneous fat layerBin Saif GA, et al. (2018). Association of psychological stress with skin symptoms among medical students. This causes scaly, silvery, sharply defined skin patches. Darker skinned people might also experience dark brown or purplish patches on the skin. Brown TM, Krishnamurthy K. Histology, Dermis. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023. Melasma is more common in pregnant people (chloasma) and individuals with a darker skin color or heavy sun exposure. People with dry skin may have a dull, rough complexion and may show more wrinkles and lines than other skin types. Irritated red patches may appear, and pores may be completely invisible.