The image of acid conjures up bubbling test tubes and burning, but in reality, it is necessary to maintain healthy skin. Various acids like salicylic, glycolic, kojic, and ascorbic acids are often dubbed as keys to happy skin. Besides face acids, there are other acids that are naturally present in the skin and help resolve many skin concerns like hydration, and skin damage, and help slow down the aging process.What are Amino Acids?In simple terms, amino acids are molecules that come together to form proteins. They help maintain healthy skin and overall health. There are two kinds of amino acids—essential and non-essential. The non-essential amino acids are produced by your body, while the essential acids must be obtained through food and supplements.Benefits of Amino Acids for SkinAmino acids play a crucial role in maintaining skin health, with recent research highlighting their diverse benefits. Essential amino acids like glycine, proline, and lysine are vital for producing collagen and elastin, proteins that give skin its structure and elasticity. A decrease in these proteins accelerates skin ageing, so consuming foods rich in these amino acids can support youthful skin.Amino acids also aid in wound healing. According to dermatologist Dr Ruben Bhasin Passi, they promote skin cell growth and tissue formation, which helps close wounds and minimize scarring. Additionally, amino acids act as natural moisturizers. They help draw and retain moisture in the skin's outer layers, preventing dryness that can lead to acne, irritation, and premature ageing, as noted in the Journal of Cosmetic Dermatology.Certain amino acids, like tyrosine, have antioxidant properties that protect the skin from UV damage by neutralizing free radicals, which are linked to premature ageing. Furthermore, amino acids such as arginine and glutamine possess anti-inflammatory effects that can alleviate conditions like eczema, psoriasis, and acne, reducing overall skin inflammation.