Dr. Karan: Should You Really Be Taking Peptides? | AMA with Dr Karan

Key Takeaways

• Understand peptides as short amino acid chains (2-50 units) that act as biological messengers – your body already uses them naturally.
• FDA-approved peptides (like insulin, GLP-1 drugs) have rigorous safety data, while gray market peptides (BPC-157, TB-500) lack human safety studies.
• Topical peptide skincare offers modest cosmetic benefits (hydration, fine lines) but can’t match injectable peptide effects due to skin barrier limitations.
• Avoid unregulated peptides sold as “research chemicals” – these lack carcinogenicity studies and may promote angiogenesis (blood vessel growth) with unknown cancer risks.
• Consult a doctor before considering peptide therapy – pharmaceutical-grade peptides require medical supervision for proper dosing and safety monitoring.

Notable Quotes

“The divide is basically proven, regulated, pharmaceutical grade peptides on the one side, and unproven, unregulated, gray market peptides on the other side.”

“When someone asks, is it safe long-term? The truthful answer is we don’t know, and there’s at least one plausible mechanism that warrants caution.”

Bottom Line

Stick to FDA-approved peptides prescribed by doctors, avoid unregulated peptide sellers, and understand that most peptide skincare offers only superficial benefits without medical-grade penetration.

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