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Veterinarians generally recommend that dogs with chronic GI issues have their B12 level tested

Restoring NAD+ levels is one of the most promising areas of longevity research, particularly when combined with complementary metabolic compounds

10.1007/s00726-011-1206-6 Summary Keywords Pichia pastoris, peptide-crossing-blood-brain-barrier, delta-sleepinducing peptide, neurotransmitter balance, mouse model, PCPA-induced insomnia Citation Mu X, Qu L, Yin L, Wang L, Liu X and Liu D (2024) Pichia pastoris secreted peptides crossing the blood-brain barrier and DSIP fusion peptide efficacy in PCPA-induced insomnia mouse models

Never freeze it Freeze-thaw cycles form ice crystals that degrade the peptide, and a single cycle can cut potency by 20 to 50%