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Collagen Peptides & Wrinkle Reduction
Collagen is the most abundant protein in the body. Collagen gives the skin, muscles, bones and connective tissue the structure it needs to maintain its form and function. In the skin, collagen acts as a scaffold supporting it and giving it the firmness and youthful appearance.
As we get older our bodies naturally lose collagen. The rate of loss is approximately 1 percent per year beginning in early adult years. As a result of losing collagen, we begin to notice a decline in the elasticity of our skin and an increase in fine lines and wrinkles. Smoking and excessive sun exposure can accelerate the aging process. Since collagen is necessary to create a firm, youthful looking skin, the next logical question would be, can taking collagen supplements replace what has been lost?
What Does the Scientific Evidence Suggest?
Clinical trials and literature reviews suggest that collagen peptides do work to benefit the skin. Studies have shown the following:
- Participants in a 12-week study using collagen peptides demonstrated statistically significant decreases in wrinkles, increases in skin elasticity and increased hydration when compared to a placebo group.
- A 2023 literature review of 26 studies showed that collagen supplementation enhances skin hydration and elasticity.
- In another 2024 study participants receiving collagen peptides measured at 4, 8 and 12 weeks showed a decrease in wrinkles and an increase in skin moisture when compared to baseline measurements.
- A 2024 trial studied the effect of collagen peptides (5 grams/day) taken for six months in women and resulted in a noted improvement in skin elasticity and hydration.
One of the strongest studies used imaging techniques to measure the depth of wrinkles. Participants in the study who were consuming collagen peptides had a 14-31% reduction in wrinkles surrounding the eye area, mouth area and forehead after 90 days.
How Do Collagen Peptides Work?
When you ingest collagen peptides, the peptides break down into individual amino acids and peptides. The peptides then travel into the blood stream where they stimulate fibroblast cells within the skin to produce additional collagen and elastin. Collagen peptides also help to slow the degradation of existing collagen. Additionally, the peptides stimulate the production of hyaluronic acid, enhancing the skin's ability to hold water and providing improved hydration.
Studies confirm that collagen peptides reach the skin and provide a beneficial environment for the skin to regenerate and repair itself.
Is Collagen Peptide Supplementing More Beneficial Than Eating More General Protein?
Since collagen is composed of amino acids, wouldn't consuming more protein have the same affect as taking collagen peptides? While the idea may seem plausible, the evidence indicates that there are unique benefits associated with collagen peptides that cannot be replicated through general protein consumption.
For example, a 2020 clinical trial comparing a standard protein supplement to collagen peptides in burn victims demonstrated that those consuming collagen peptides healed wounds at a faster rate than the standard protein group. This suggests that collagen peptides have unique properties that contribute to wound healing and skin health beyond the general nutritional value provided by general protein consumption.
Additionally, collagen peptides are more bioavailable than general protein. Bioavailability refers to how easily a substance is absorbed and utilized by the body.
Are Collagen Peptides Safe?
Collagen peptides are derived from collagen-rich animal products. There are no known adverse reactions to collagen peptides. Regulatory agencies such as the FDA and WHO recognize collagen peptides as safe for use.
Using Collagen Peptides for Optimal Results
There appears to be a minimum dose of collagen peptides that will yield some level of skin improvement. Most studies indicate that a dose of 2.5 to 15 grams per day will provide some degree of skin improvement. Studies demonstrate that a dosage range of 4 to 12 weeks is optimal for demonstrating some degree of skin improvement. The longer the duration of supplementation, the greater the long-term benefits of collagen peptides.
The Keys To Healthy Skin For Life
In addition to being able to rebuild skin internally with the help of collagen peptides, you will want to take measures to prevent your skin from receiving further damage. See science backed skincare that actually works for a more comprehensive review of science backed skincare strategies.
UV Radiation From the Sun Will Be Your Biggest Enemy When It Comes to Collagen. Exposure to the sun's UV rays are what cause collagen to break down. Therefore, using sunscreen every day to protect your skin from this type of damage is essential to keeping your skin healthy.
Final Thoughts
Collagen peptides have proven to be an evidence based method for improving skin hydration, increasing skin elasticity, and reducing wrinkles. When used consistently for several months, collagen peptides may be a useful addition to your overall skincare and health regimen.