Allantoin
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Allantoin is a naturally occurring compound derived from sources such as comfrey root, wheat sprouts, and certain plants. Allantoin boasts remarkable moisturising, soothing, and skin-regenerating properties. Its ability to enhance the skin's moisture retention capacity makes it a popular ingredient in moisturisers, creams, and lotions, effectively promoting softness and preventing dryness.
Allantoin is renowned for its gentle exfoliating action, aiding in the removal of dead skin cells and promoting a smoother, more refined complexion.
Its anti-irritant and anti-inflammatory attributes also make it suitable for sensitive skin types, helping to alleviate redness and discomfort.
Allantoin can help neutralise skin’s response to stronger active ingredients and is often included in formulas to help buffer any potential adverse effects.
Skin Soothing and Calming: Allantoin has anti-inflammatory properties, making it effective at soothing and calming irritated skin. It can provide relief for conditions such as redness, itching, and inflammation caused by various factors, including environmental stressors and skin conditions like eczema.
Moisturising: Allantoin is a humectant, which means it helps the skin retain moisture. It forms a protective barrier on the skin's surface, preventing moisture loss and keeping the skin hydrated. This makes it particularly beneficial for dry or dehydrated skin.
Exfoliation and Cell Renewal: Allantoin promotes the shedding of dead skin cells, aiding in the natural exfoliation process. This helps to keep the skin's surface smooth and can improve the overall texture of the skin. Additionally, allantoin stimulates the growth of new, healthy skin cells, contributing to a more youthful appearance.
Wound Healing: Allantoin has wound-healing properties. It can enhance the skin's ability to repair itself by stimulating the production of collagen and elastin, which are essential for skin elasticity and strength. This makes it useful for treating minor cuts, burns, and abrasions.
Reduction of Scarring: Allantoin's ability to support skin regeneration can help reduce the appearance of scars and promote a more even skin tone.
Anti-Irritant: It is gentle on the skin and suitable for sensitive skin types. It can help alleviate skin discomfort and redness caused by various irritants, including exposure to harsh weather conditions and certain skincare products.
Sunburn Relief: Allantoin can provide relief from the discomfort associated with sunburn by reducing redness and inflammation. It may also aid in the healing process.
Anti-Aging: By promoting cell turnover and collagen production, allantoin can help diminish the appearance of fine lines and wrinkles, leading to a more youthful complexion.
Acne Management: Allantoin's anti-inflammatory and exfoliating properties can be beneficial for acne-prone skin. It can help reduce redness and inflammation associated with acne and promote the healing of blemishes.
Enhanced Product Efficacy: Allantoin is often used in combination with other skincare ingredients to boost their effectiveness. It can enhance the absorption and penetration of other active ingredients in skincare products.
Use in concentrations up to 2%. It should be added to the aqueous (water) phase of formulas or after emulsification.
Use levels 0.2-2%. Can crystallise if added at hot temperatures and then rapidly cooled down. Not for internal use.
Allantoin should not be used with Alpha-hydroxy and Beta-hydroxy acids.
CAS Number: 97-59-6
Chemical Structure: Allantoin is a chemical compound with the molecular formula C4H6N4O3. Its IUPAC name is 5-ureidohydantoin.
Molecular Weight: The molecular weight of allantoin is approximately 158.12 g/mol.
Appearance: Allantoin is typically found as a white, odorless, and crystalline powder.
Solubility: Allantoin is highly soluble in water, making it easy to incorporate into aqueous formulations. It is also soluble in glycerin and propylene glycol but has limited solubility in organic solvents.
Melting Point: Allantoin has a melting point of approximately 230-235°C (446-455°F).
pH Stability: Allantoin is stable at a wide range of pH levels, making it suitable for formulations with varying pH values.
Water Content: Commercial allantoin products should have a low water content to maintain stability. The typical water content is less than 0.5%.
Purity: Exceeding 98%.
Function: Allantoin is known for its skin-soothing, moisturising, and keratolytic (exfoliating) properties. It is often used in products designed to promote skin healing and regeneration.
Compatibility: Allantoin is compatible with a wide range of cosmetic ingredients and formulations, making it versatile in various skincare and cosmetic products.