How Do Alpha Hydroxy Acids Work in Skin Care?如何阿爾法羥基酸的工作，在皮膚護理呢？

Alpha hydroxy acids, commonly referred to as AHAs, are effective ingredients that are widely used in cosmetic formulations.阿爾法羥基酸，通常稱為ahas ，是有效成分被廣泛採用在化妝品配方。 Though found widely in nature, they may also be synthesized in a lab.雖然發現廣泛的性質，它們也可以合成在實驗室中。

Alpha hydroxy acids are included in skin care preparations for their ability to exfoliate or remove the surface layer of skin cells, allowing healthier skin cells to come to the surface.阿爾法羥基酸是包括在皮膚護理的準備工作，他們的能力，脫落或刪除的表層皮膚細胞，讓健康的皮膚細胞來表面。 This process can help to improve the way that skin looks and feels.這個過程可以幫助改善的方式，皮膚的外觀和感覺。

Alpha hydroxy acids tend to be used in one of two ways:阿爾法羥基酸往往是用兩種方法之一：

1. Chemical peels in high concentrations (generally over 20%).化學果皮，在高濃度（一般超過20 ％ ） 。 These are generally performed in an office setting by a qualified professional.這些都是一般的表現是在辦公室設置由合資格的專業。
2. At home creams, serums, cleansers etc in concentrations up to 15%.在家裡面霜，血清，清潔等，在濃度高達15 ％ 。

Are alpha hydroxy acids effective? 是阿爾法羥基酸有效？

The effectiveness of alpha hydroxy acids has been documented in several studies.的成效， α -羥基酸已被記錄在數項研究。 In one study, a 50 percent glycolic acid peel was shown to improve the appearance of sun damaged when applied for four weeks.在一項研究中， 50 ％的乙醇酸剝離結果表明，以改善外觀，孫損壞時，申請四周。 Ohter studies have demostrated an improvement in dry skin and, at higher concentrations, skin thickness is increased by improving elastin and collagen production. ohter研究demostrated有所改善，皮膚乾燥，並在高濃度，皮膚厚度是增加了改善彈性纖維和膠原蛋白的生產。

Glycolic acid (derived from sugar cane), is the most widely used AHA and has considerable research to support its effectiveness. The downside is that it can be more irritating than other AHAs and may be problematic in darker skin types, where it may lead to hyperpigmentation.乙醇酸（來自甘蔗） ，是使用最廣泛的啊哈，並有相當的研究，以支持其有效性。壞處是，它可以更令人惱火了比其他ahas和可能會有問題，在膚色較深的類型，它可能會導致色素沉著。 Other effective alpha hydroxy acids include:其他有效的阿爾法羥基酸包括：

• Lactic acid, derived from milk.乳酸，來自牛奶。 It is milder and tends to be less irritating than glycolic acid, making it ideal for sensitive skin.這是較溫和的，而且往往要少刺激性，比乙醇酸，適合敏感性皮膚。
• Citric acid from citrus fruits檸檬酸從柑橘類水果
• Malic acid from apples and pears蘋果酸從蘋果和梨
• Tartaric acid from grapes酒石酸葡萄
• Mandelic acid from almonds.扁桃酸杏仁。 Mandelic acid is well tolerated and ideal for darker skin types where the risk of hyperpigmentation is very low.扁桃酸是很好的耐受性和理想的膚色較深的類型如色素沉著的風險是很低的。

AHAs are most effective at concentrations above 8%. ahas是最有效的濃度在8 ％以上。 They should be formulated at low ph in order for them to be effective. Lower concentrations (less than 8%) are a good way to gradually introduce an AHA into your regimen, without over sensitizing skin.他們應該制訂在低pH值，以便於他們是有效的。低濃度（小於8 ％ ）是一個很好的方式，逐步引入啊哈到您的水情，沒有超過敏感的皮膚。

What are the side effects of alpha hydroxy acids? 有什麼副作用， α -羥基酸？

Though generally safe, alpha hydroxy acids can irritate some skin types leading to redness or flaking.雖然普遍安全，阿爾法羥基酸可以刺激一些皮膚類型，導致發紅或剝落。 They also increase skin’s photosensitivity, making individuals more susceptible to sunburn.他們還增加皮膚的光敏性，使個人更容易曬傷。 For this reason, one should never use an AHA without a minimum of SPF 30 protection.基於這個原因，一應從來不使用一啊哈沒有一個最低對SPF 30的保障。

How do you incorporate an AHA into your skin care regimen? 你怎麼把一啊哈到您的皮膚護理水情？

Normal and dry skin types benefit most from AHAs.正常及幹性膚質類型受惠最多，從ahas 。 Though cleansers and toners will deliver some benefit, you’ll get the best bang for your money by using an AHA cream, serum or lotion which will work by staying in contact with your skin.雖然清潔和碳粉會帶來一些好處，您會得到最好的邦為您的錢，用一啊哈霜，血清或洗劑，將工作留在接觸你的皮膚。

My top pick is我的首選是 MaMa Lotion媽媽洗劑 , a 20% AHA serum (with 10% mandelic acid and 10% malic acid). ， 20 ％ ，啊哈血清（ 10 ％扁桃酸和10 ％的蘋果酸） 。 Studies have shown that MaMa Lotion is effective for:研究表明，媽媽洗劑是有效的：

• Melasma and other hyperpigmentation disorders黃褐斑及其他色素沉著症
• Acne痤瘡
• Acne scars痤瘡疤痕
• Wrinkles and fine lines皺紋和幼紋
• Rosacea.酒渣鼻。