Allantoin
| Time Frame | Effect of Allantoin in Skincare | Suitable Skin Types |
|---|---|---|
| 1 week | Noticeable soothing of irritation and redness; improved hydration and initial relief for dry, sensitive, or inflamed skin. | All skin types, especially sensitive, dry, or irritated skin |
| 2–4 weeks | Enhanced moisture retention, softer and smoother skin texture; reduction in flakiness and visible signs of irritation. | All skin types, including eczema- and acne-prone |
| 4–8 weeks | Strengthened skin barrier, accelerated cell regeneration, and improved healing of minor wounds or post-acne marks; more resilient and even-toned skin. | All skin types, especially those with barrier damage or rough texture |
| 8–12 weeks | Noticeable anti-aging effects: reduced fine lines and wrinkles, firmer and more youthful-looking skin; long-term improvement in skin clarity and resilience. | All skin types, including mature and compromised skin |


