Standard ice packs risk freezing if placed in direct contact with the vial
164 In a randomized crossover trial in 50 subjects with male infertility, one month of treatment with a supplement containing pine bark extract plus L-arginine (an amino acid precursor to nitric oxide which regulates blood vessel function) increased semen volume, sperm number and concentration, motility, and vitality, and improved sperm morphology compared with placebo
Hypercobalaminaemia is usually asymptomatic and discovered incidentally during blood tests
The rest period follows the completion of the full protocol, not each individual cycle
However, a very small number of peptides can have solubility or stability issues with benzyl alcohol
Look for cloudiness, particles, color changes, or unusual odor in the solution