Current evidence suggests the answer is yes
All Xcel Peptides products are intended strictly for laboratory and scientific research use only
Freeze-thaw cycling is the specific mechanism most likely to degrade BPC-157 + GHK-Cu + TB-500 after it reaches you, and it is entirely under your control: a single reconstitution split into pre-planned aliquots exposes the material once, while repeatedly warming and refreezing one container exposes it as many times as you open it
Preclinical data across animal and in vitro models consistently points to roles in intestinal lining integrity, inflammation modulation, and mucosal tissue repair
With Stretch marks all we can do is try to improve them by blending the color in with surrounding skin and improving the collagen support in the surrounding skin - but the tear can never be completely repaired (though it can be removed with surgery, which will also leave scarring behind in its stead - most patients dont want that, which is why we rarely recommend that option)
Alexander Y, Osto E, Schmidt-Trucksass A, Shechter M, Trifunovic D, Duncker DJ, Aboyans V, Back M, Badimon L, Cosentino F, De Carlo M, Dorobantu M, Harrison DG, Guzik TJ, Hoefer I, Morris PD, Norata GD, Suades R, Taddei S, Vilahur G, Waltenberger J, Weber C, Wilkinson F, Bochaton-Piallat ML, Evans PC (2021) Endothelial function in cardiovascular medicine: a consensus paper of the European Society of Cardiology Working Groups on atherosclerosis and vascular biology, aorta and peripheral vascular diseases, coronary pathophysiology and microcirculation, and thrombosis