How Long Does It Take To Improve Muscle Mass With Collagen? Here's The Scoop*

When discussing collagen supplements, much of the focus is geared toward their beauty benefits—you know, skin elasticity and smoothness1, strong hair and nails2, and enhanced hydration3.* While these are amazing benefits of collagen, they're not the only advantages to starting a regular collagen routine. Let's not forget: Collagen is not only a beauty supplement but also a great exercise aid.* 

Let's first discuss how collagen affects your muscles. Collagen is technically not a complete protein because it's missing tryptophan, one of the nine essential amino acids. Still, it delivers close to 20 unique amino acids and can support muscle mass, particularly when combined with exercise.* (Collagen makes up 1 to 10% of muscles, in fact!)

In one small clinical study, men who took collagen daily while participating in an exercise program gained more muscle mass4 than those who only did the exercise program.*

Now, how long does it take to see these results? Well, the specific time frame for muscles varies, depending on the intended result studied. For enhanced muscle mass from collagen protein (peptides and amino acids), research points to about three months when combined with resistance training.*

For example, one study that focused on perimenopausal women found that the participants experienced a positive impact on body composition and regional muscle strength5; another study conducted in older men also observed benefits for their body composition and muscle mass6; finally, research in recreationally active adult men finds that collagen supplementation supports body composition7 as well as skeletal muscle8—all of these benefits fell within a three-month period.* 

Beyond all of that, collagen supplements have also been shown to improve recovery times—and this happens at a much faster rate than the impact on muscle mass and strength.* In fact, for a typical level of muscle soreness after strenuous exercise, one study found that you may see benefits by day two9.*

Let's repeat that: You may start experiencing improved recovery time two days after starting supplementation.*

Now that we've covered the benefits, let's discuss what kind of supplement you should invest in and why. 

First up: While you're browsing, always look for hydrolyzed collagen peptides. "Collagen is a complex protein made of three chains of amino acids, whereas hydrolyzed collagen is collagen that is broken down into small protein chains, called collagen peptides, that are made of a few amino acids," Nour Zibdeh, M.S., RDN, CLT, previously explained to mbg. 

See, collagen by itself is too large of a compound to be absorbed by the body. But when broken down into peptides, your body is able to easily digest and utilize it.* "Hydrolyzed collagen is predigested, so it does not go through that first-pass digestion in the GI tract," board-certified dermatologist Joshua Zeichner, M.D., previously told mbg. "The collagen fragments can be absorbed as is and circulate throughout the body to exert their effects."*

Of course, with any supplement, you have to be sure you're taking the correct dosage, as you can't expect results if you don't ingest the proper amount for the benefit you're after. If supporting muscular health is your main priority, studies show that 15 to 20 grams per day can help muscle mass6, muscle strength5, and soreness after exercise9.*