Both sermorelin and CJC-1295 work by stimulating your body to release more growth hormone naturally. However, they have key differences that might make one more suitable for you.
CJC-1295 has a longer half-life than sermorelin. This means it stays active in your body for about 6-8 days, while sermorelin only lasts about 16 minutes. Because of this difference, you need fewer CJC-1295 injections - typically 1-2 times per week compared to daily injections with sermorelin.
Sermorelin has been studied longer and has a good safety record. It works well for people who want to mimic the body's natural growth hormone pulse at night. Many doctors feel comfortable prescribing it because of its established history.
If you're looking for the best peptides for muscle growth, CJC-1295 might have an advantage. Its longer-lasting effect provides more consistent growth hormone elevation, which can help with muscle recovery and growth.

Cost is another factor to consider. Sermorelin is usually less expensive per dose, but you need more frequent injections. CJC-1295 costs more per dose but requires fewer injections overall.
So, does sermorelin work well for building muscle? Yes, it does, but CJC-1295 might be more effective for this specific goal due to its sustained action.

Your best choice depends on your budget, how often you want to inject, and your specific health goals. Talk with a healthcare provider who knows about peptide therapy to get personalized advice.