Rebel Nutrition Smooth Grass-fed Collagen Powder

What the brand says

Hydrolyzed Type 1 & 3 Grass-fed Collagen Protein Powder. Mix into your favorite beverage for an instant nutritional boost that supports gut lining, joints, skin, hair and nail health.* Third Party tested for Purity, Quality and Potency. A review of 19 studies that included 1,125 participants (95% women) between the ages of 20 and 70 found that taking hydrolyzed collagen improved skin hydration, elasticity, and wrinkles compared with placebo treatments. 1 Hydrolyzed collagen is a common type of collagen used in supplements that is created using a process called hydrolysis. This process breaks down the protein into smaller pieces, making it easier for the body to absorb. 2 A number of studies have shown that taking collagen supplements may improve skin hydration and elasticity and reduce the appearance of wrinkles. 3,4 The doses of collagen shown to be effective for improving skin health in research studies vary, though most studies have used 2.5–15 grams per day for 8 weeks or longer. 5, 6 In addition to improving some aspects of skin health and appearance, collagen offers other benefits too! One study looked at the effects of taking collagen supplements in 102 women in postmenopause who had reduced bone mineral density (BMD). Those who took 5 grams of collagen peptides per day for 1 year had significant increases in BMD in their spine and femur (a bone in the lower leg) compared with participants who took a placebo. 7 A follow-up study in 31 of these women found that taking 5 grams of collagen daily for a total of 4 years was associated with a progressive increase in BMD. The researchers found that participants’ BMD increased by 5.79–8.16% in the spine and by 1.23–4.21% in the femur during the follow-up period. 8 This means that taking collagen supplements long-term may help increase bone mineral density in people in post menopause, who are at a greater risk of developing osteopenia and osteoporosis.