Loose skin is common after dramatic weight loss. According to Sarah Siddons from HowStuffWorks, using a moisturizer rich in vitamins A and C, alpha hydroxy acid and beta hydroxy acid can help combat loose skin after weight loss. Antioxidant supplements, witch hazel, oatmeal and tea tree oil are also known to hydrate and tone skin.
WebMD notes that skin loses its elasticity due to the breakdown of its underlying cell structure over time. In youth, the body is better able to replenish and rejuvenate damaged skin cells, but as the body ages, this process takes longer and is less effective. Age, exposure to sun and rapid weight loss are the primary reasons for loose skin.
If a person has weight loss surgery, weight loss occurs faster than normal and the skin is not able to adjust to the change as it might otherwise resulting in loose skin, reports Siddons. To eliminate loose skin, hydration is key as moisture helps the skin maintain its elasticity.
Over-the-counter moisturizers and oils work to replenish the skin's moisture, helping the skin to repair itself more effectively over time. Witch hazel works as a natural astringent, notes Jennifer Brett for HowStuffWorks. Unlike oils and moisturizers, witch hazel causes temporary tightness by drying and hardening skin tissue.