Ihe mere ị ga-eji gbasaa ịka nká
Dika onu ogugu nke nchoputa na-eleba anya na ihe na-akpata nruru na ihe ndi na- emetuta ya , ojiji nke beta hydroxy acid abawanyewanye na mmuta. E nwere ụdị abụọ nke hydroxy asịd: mkpụrụ na beta. Akwukwo alpha hydroxy acids (AHA) bu ndi mmadu na-esi na mkpuru osisi na mmiri ara ehi dika glycolic acid , nke a na-eme site na shuga na lactic acid (nke a na-emeputa na mmiri ara ehi).
E nwere nanị beta hydroxy acid (BHA) nke a na-ejikarị eme ihe na anụ ahụ, nke ahụ bụ salicylic acid, nke sitere na aspirin.
Otú Beta Hydroxy Acid si arụ ọrụ
Beta hydroxy acid na-arụ ọrụ tumadi dị ka onye na-agba agba. Ọ na-akpata mkpụrụ ndụ nke epidermis (akpụkpọ anụ kachasị elu nke akpụkpọ ahụ) ka ọ bụrụ "ndị a na-ejighị n'aka," na-ekwe ka mkpụrụ ndụ akpụkpọ anụ nwụọ, na-eme ka ọnyà nke akpụkpọ anụ dị ọhụrụ. A na-akọ Beta hydroxy acid ka ọ dị mma iji wrinkling, roughness, na ịkọ nkọ nke akpụkpọ anụ mgbe ọ dịkarịa ala ọnwa isii nke ngwa ngwa kwa ụbọchị. Beta hydroxy acid nke a na-achọta n'ime ngwaahịa anụ ahụ na-arụ ọrụ kachasị mma n'ime nsị nke pasent 1 ruo pasent 2 nakwa na pH nke 3 ruo 4.
Ọdịiche dị n'etiti Alpha na Beta Hydroxy Acids
Ihe dị iche n'agbata alpha hydroxy acids na beta hydroxy acid bụ ngwọta ha (mmanụ). Arid hydroxy acids bụ mmiri soluble naanị, ebe beta hydroxy acid bụ lipid-soluble, nke pụtara na ọ ga-agbaze mmanụ.
Nke a pụtara na beta hydroxy acid nwere ike ịbanye n'ime pore ahụ, nke nwere mmanụ snoo mmanu na exfoliate akpụkpọ anụ akpụkpọ anụ nke na-arụpụta n'ime ogidi ahụ. N'ihi ọdịiche a na njirimara, beta hydroxy acid dị mma maka akpụkpọ anụ na blackheads na whiteheads . A na-eji mmiri ọgwụ acids dị elu mee ihe n'ụzọ dị mma karị, ebe ọ bụ na breakouts abụghị nsogbu.
Sun sensivity
Ojiji nke beta hydroxy acid nwere ike ime ka anyanwụ nwee mmetụta nke pasent 50, na-akpata nsogbu dị mma. Ọ na-egosi na beta hydroxy acid nwere ike ịmeghachite ụfọdụ mmebi kpatara site na ịkọ nkọ, mana n'otu oge ahụ, ọ na-eme ka akpụkpọ ahụ dịkwuo mfe ịchọta ozi. O doro anya na onye ọ bụla na-eji beta hydroxy acid kwesịrị iji ezigbo ụlọ nchedo nke nwere UVA na UVB nchebe.
Lezienụ Anya maka Iwe Iwe
Beta hydroxy acid yiri ka ọ na-ewe iwe karịa mkpụrụ alpha hydroxy acid, ọ bụ ezie na ọ na-abanye n'ime ahụ. Nke a na - eme n'ihi na salicylic acid sitere na acetylsalicylic acid ma ọ bụ aspirin. Aspirin nwere ihe na-egbu egbu, mmiri salicylic na- ejidekwa ọtụtụ n'ime ihe ndị a na-egbu egbu. N'agbanyeghị eziokwu a, beta hydroxy acid nwere ike ịme ka mkpasu iwe nwee nsogbu. Mgbaàmà nke iwe na-agụnye redness, ọkụ, itching, ihe mgbu, na ike ịkọ. Ndị na-acha akpụkpọ ahụ na-acha ọbara ọbara na-enwe nsogbu dị ukwuu n'ịfụ mgbanwe pigmenti na beta hydroxy acid.
Iji Beta Hydroxy Acid
Beta hydroxy acid dị n'ọtụtụ ụdị nlekọta anụ ahụ gụnyere moisturizers , ọcha, ude anya, sunscreen, na ntọala. Ọ kachasị mma ịchọta otu ngwaahịa nke nwere ụdị beta hydroxy acid iji mee ka ọ bụrụ ihe mgbapụta gị, wee họrọ ihe ndị ọzọ na-ahụ maka akpụkpọ anụ ma ọ bụ ihe ịchọ mma nke na-enweghị hydroxy asịd iji belata ihe mgbakasị anụ ahụ.
Iji beta hydroxy acid mee ihe na steeti moisturizer nwere ike ịbụ ihe kacha mma. Ndị na-ehicha ihe nwere beta hydroxy acid anaghị adị irè n'ihi na beta hydroxy acid ga-etinye aka n'ime akpụkpọ ahụ ka ọ rụọ ọrụ. A na-ehichapụ ndị na-ehichapu ihe a tupu emee ihe a.
Enweghị ngwaahịa dị irè nke na-ejikọta beta hydroxy acid na sunscreen n'ihi na anyanwụ adịghị eguzo na pH nke achọrọ iji mee ka beta hydroxy acid dị irè. A ghaghị iji sunscreen mee ihe nke ọma mgbe ị na-eji ngwaahịa beta hydroxy acid. Igwe na-acha ọkụ kwesịrị inwe SPF nke ma ọ dịkarịa ala maka nchekwa nchekwa UVB (ma ọ bụ 30 ma ọ bụ karịa) na ịnweta uzozone, titanium dioxide, ma ọ bụ zinc oxide maka nchekwa UVA.
Beta hydroxy acid na-arụ ọrụ kachasị mma n'ime ntanye 1 ruo 2 na pH nke 3 ruo 4. N'ụzọ dị mwute, ndị na-emepụta ihe ịchọ mma adịghị achọ ịgụnye pH ozi na label. Nanị ụzọ ịmara pH nke ngwaahịa bụ iji nwaa pH tụọ ya.
N'adịghị ka mkpụrụ alpha hydroxy acid, nke a ga-edepụtara n'ime ihe atọ kachasị elu iji gosi na ekwesiri ekwesị, beta hydroxy acid nwere ike depụta na etiti ma ọ bụ ọbụna na ala nke akwukwo ngwa ngwa n'ihi na ọ dị irè na ụda elu.
> Isi:
> Beta Hydroxy Acids. Nchịkwa nri na ọgwụ ọjọọ na US. https://www.fda.gov/Cosmetics/ProductsIngredients/Ingredients/ucm107943.htm.