Compare Peptides
Select any two compounds for a side-by-side comparison of mechanism, uses, risks, and FDA regulatory status.
Popular comparisons
A naturally occurring iron-binding glycoprotein found in milk, saliva, tears, and mucosal secretions. One of the body's first-line innate immune defenses. Available as an oral supplement and in research-grade injectable form.
A tripeptide (glutamate-cysteine-glycine) that is the body's most abundant endogenous antioxidant. Plays a critical role in detoxification, immune function, and cellular protection. Available in oral, IV, and injectable forms.
Binds free iron, depriving bacteria of a nutrient essential for growth (bacteriostatic effect). Also directly disrupts bacterial cell membranes (bactericidal). Modulates immune response by promoting T-cell and NK cell activity while reducing inflammatory cytokines. Enhances iron absorption in the gut.
Neutralizes reactive oxygen species (ROS) and free radicals. Conjugates toxins for excretion via the liver (Phase II detoxification). Regenerates other antioxidants (vitamins C and E). Supports T-cell function and immune regulation.
- Immune support
- Iron deficiency (improves absorption)
- Gut health
- Antimicrobial defense
- Anti-inflammatory support
- Antioxidant support
- Liver detoxification
- Skin brightening
- Immune support
- Heavy metal chelation support
- Anti-aging
- Generally well-tolerated orally
- GI discomfort at high doses
- Allergic reactions in dairy-sensitive individuals
- Injectable form has limited safety data
- Oral bioavailability is poor (liposomal forms better)
- IV glutathione generally well-tolerated
- Rare allergic reactions
- Skin lightening effect is controversial
- May interfere with chemotherapy drugs
Available as a dietary supplement (GRAS status). Not FDA-approved for any medical indication. Widely available OTC. Injectable form is research-only.
Available as a dietary supplement (oral) and through IV clinics. Not FDA-approved for any medical indication. No regulatory restrictions on supplement form.
- Lactoferrin: a multifunctional glycoprotein
2012 · PubMed
This comparison is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before starting any peptide therapy.