carboxylic acid and skin care

8/19/2019 Carboxylic acid and skin care

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CarboxylicAcid

AndSkin Care


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CARBOXYLIC A CIDany of a class of organic compounds inwhich a carbon (C) atom is bonded to

an oxygen (O) atom by a double bond

and to a hydroxyl group (−OH) by asingle bond. A fourth bond lins thecarbon atom to a hydrogen (H) atom orto some other uni!alent combining

group. "he carboxyl (COOH) group isso#named because of the carbonylgroup (C$O) and hydroxyl group.

http://www.britannica.com/science/carbon-chemical-elementhttp://www.britannica.com/science/organic-compoundhttp://www.britannica.com/science/carbon-chemical-elementhttp://www.britannica.com/science/oxygenhttp://www.britannica.com/science/hydrogenhttp://www.britannica.com/science/hydrogenhttp://www.britannica.com/science/oxygenhttp://www.britannica.com/science/carbon-chemical-elementhttp://www.britannica.com/science/organic-compound


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Hydroxy Acids are some of the most

widely used and studied anti#agingsincare ingredients. Clinical studies ha!e

shown %ust how e&ecti!e these ingredients

are in re!ersing the e&ects of photoagingand signi'cantly impro!ing wrinles sin

hydration elasticity and tone.


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Alpha hydroxy acids (AHAs) are naturally

occurring carboxylic acids found in many foods

including glycolic acid (sugar cane) lactic acid

(mil) citric acid (citrus fruits) and malic acid

(apples) among others. "he most commonly used

alpha#hydroxy acids are glycolic and lactic acids.


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eta Hydroxy Acids (HAs) such as salicylic acid are !ery

similar to AHAs but are lipid#soluble instead of water#soluble."his structure allows it to penetrate into the sin through

sebaceous follicles maing it appropriate for patients with

oily sin and open comedones. HAs ha!e also been found to

be less irritating to the sin than AHAs. *n a recent studyresults showed short#term topical application of glycolic acid

in a cosmetic formulation increased the sensiti!ity of human

sin to the +, radiation while a comparable treatment with

salicylic acid did not.14

*t-s also worth noting that salicylicacid has anti#inammatory acti!ity which may reduce

irritation.


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Trichloroacetic acid(TCA) is astronger acid than acetic acid. *t isused to chemically burn warts andfor facial peels. *t is potentially as

corrosi!e as sulfuric acid andneeds to be treated with care/ Asis the case with phenolthe

concentration of thetrichloroacetic acid and theamount of time the sin is exposedneed to be monitored carefully.


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"CA remo!es ageing layers of sin

that are damaged by !arious organicor external processes. *t coagulatescutaneous proteins by destroying theepidermal layer which is laterreplaced by a newepidermis and new connecti!e tissue.


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0etin#A 0egulates eratini1ation enhancingthe cellular reno!ation process. 0etinoic

acid impro!es the appearance and o!erall2uality of the sin. 0etinoic acid nourishesthe sin pre!ents wrinles diminishes thedepth of existing wrinles and impro!es theelasticity of aging sin while stimulating'broblasts. *t synthesi1es connecti!e tissuemolecules particularly collagen. *n additionit regulates melanocyte acti!ity andattenuates spots caused by excessi!e

exposure to +, rays.

0etinoic acid


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PROPANOIC ACI D (PROPIONIC ACID

is an acid produced by se!eral species ofthe bacteria genus Propionibacterium.

Propionibacterium acnes grows onpeople-s sins and uses oils from thesebaceous glands as an energy source. *talso produces propionic acid as a product

and is responsible for causing acne.3ropionibacterium freudenreichii is abacterium that produces the CO4 gasbubbles in 5wiss cheese and the propionicacid is partially responsible for the uni2ue

a!or of 5wiss cheese.Lactic acid (4#hydroxypropanoic acid) is produced by


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LACTIC ACID (4#

H780O9730O3A:O*C AC*8)

is produced by 6actobacillusacidophilus in yogurt and by your

muscle cells during anaerobic exercise.*t is also used in a !ariety of sin careproducts.


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GLYCOLIC ACI D (2-YDROXY AC!TIC ACID

is sold in a !ariety of sin care products forremo!ing wrinles and maing sin loo younger.

*t wors the same way as phenol andtrichloroacetic acid dissol!ing away the outerlayers of sin but it is milder in its action.


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;< #+:8=C=:O*C AC*8( +:8=C76=:*C AC*8

is a monounsaturated ;; Ccarboxylic acidwhich is used to treat epidermal fungal

infections lie athlete-s foot. *t is the acti!eingredient in se!eral o!er the counterproducts


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carboxylic acid and skin care

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