Side-by-side comparison: effects, dosing ranges, side effects, regulatory status, and reconstitution.
Peptide A
Healing & Recovery
Human antimicrobial peptide with broad-spectrum pathogen defense and wound-healing activity.
Peptide B
Healing & Recovery
Synthetic fragment of Thymosin Beta-4 with potent tissue repair activity.
Typical vial
5 mg
Typical dose
50-100 mcg
Half-life
~15-30 minutes (rapidly degraded by proteases)
FDA status
Not FDA approved for human use.
Typical vial
5 mg
Typical dose
2000-5000 mcg
Half-life
~6-8 hours
FDA status
Not FDA approved for human use.
LL-37 effects
TB-500 effects
LL-37 side effects
TB-500 side effects
LL-37 dosing ranges
Antimicrobial support
50-100 mcg · Once daily (SubQ) · 2-4 weeks
Wound healing support
50-100 mcg · Once daily near affected area · 2-4 weeks
TB-500 dosing ranges
Acute injury healing
2000-5000 mcg · Twice weekly · 4-6 weeks
Maintenance and recovery
2000 mcg · Once weekly · 4-8 weeks
LL-37: Human antimicrobial peptide with broad-spectrum pathogen defense and wound-healing activity. Typical dose 50-100 mcg. TB-500: Synthetic fragment of Thymosin Beta-4 with potent tissue repair activity. Typical dose 2000-5000 mcg. Both fall under the Healing & Recovery category.
Stacking LL-37 with TB-500 is a protocol-design question best raised with a clinician — it depends on your goal, current bloodwork, and whether both peptides target overlapping mechanisms. Both peptides should be tracked independently with separate injection sites and timing. PinnyPeptide supports multi-peptide stacks with automatic injection site rotation.
LL-37 is typically dosed: Once daily (SubQ) for Antimicrobial support; Once daily near affected area for Wound healing support. TB-500 is typically dosed: Twice weekly for Acute injury healing; Once weekly for Maintenance and recovery.
LL-37: Not FDA approved for human use. TB-500: Not FDA approved for human use.
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