Peptide FAQs: Anti-Aging Peptides Questions Answered | BPC-157, TB-500, NAD+

Peptide FAQs: Your Anti-Aging Peptides Questions Answered

Comprehensive answers to the most common questions about anti-aging peptides, BPC-157, TB-500, NAD+, and peptide therapy. Whether you’re new to peptides or looking to optimize your protocol, this FAQ covers everything you need to know.

General Peptide Questions

Are peptides safe to use?

When sourced from reputable vendors with third-party testing and used according to established protocols, anti-aging peptides are generally considered safe. Most side effects are mild—typically injection site reactions, headaches, or temporary fatigue. However, peptides sold as “research chemicals” are not FDA-approved for human consumption. Always consult with a healthcare provider before use, especially if you have existing health conditions, are pregnant, or are taking medications.

How are peptides administered?

Most peptides are administered via subcutaneous injection using small insulin needles (29-31 gauge). The injection is typically given in the abdomen, thigh, or upper arm. Some peptides are available as nasal sprays (like Selank or Semax), oral capsules (NMN and NR for NAD+ precursors), or topical creams. Subcutaneous injection remains the most common and effective method for most peptides, including BPC-157, TB-500, and growth hormone secretagogues.

Do I need a prescription for peptides?

Most peptides are sold as “research chemicals” and do not require a prescription for purchase. However, they are not FDA-approved for human consumption. Some peptides—like Semaglutide (Ozempic/Wegovy), Tirzepatide (Mounjaro/Zepbound), and certain growth hormone therapies—are prescription medications that require medical supervision. Always purchase from reputable vendors who provide third-party testing, and consult a healthcare provider before starting any peptide protocol.

How long until I see results from peptides?

Results vary significantly by peptide type and individual factors:

For more detailed protocols, see our Getting Started Guide.

BPC-157 Questions

What is the proper dose for BPC-157?

The standard BPC-157 dose is 250-500mcg daily via subcutaneous injection. For acute injuries, many users take 500mcg twice daily (morning and evening). Injections can be given near the injury site or in the abdomen. A typical cycle lasts 4-12 weeks depending on the condition being treated. BPC-157 has a half-life of approximately 4 hours, so twice-daily dosing may provide more consistent results for active injuries.

What is BPC-157 best used for?

BPC-157 is most commonly used for:

Research published in the Journal of Physiology has demonstrated BPC-157’s remarkable healing properties.

Can BPC-157 be injected near an injury?

Yes, BPC-157 can be injected subcutaneously near (but not directly into) an injury site. Many users report better results with localized injections for specific injuries. However, systemic injections (abdominal) also work effectively. Never inject directly into a joint, tendon, or muscle—always use subcutaneous (under the skin) administration.

TB-500 Questions

What is the proper dose for TB-500?

TB-500 is typically dosed at 2-2.5mg twice weekly during the loading phase (first 4-6 weeks), then reduced to 2.5mg once weekly for maintenance. Unlike daily peptides, TB-500’s longer half-life allows for less frequent dosing. Total cycle length is usually 6-12 weeks. TB-500 can be stacked with BPC-157 for synergistic healing effects, using standard doses of each peptide.

What is TB-500 best used for?

TB-500 is most effective for:

Can I stack BPC-157 and TB-500 together?

Yes, BPC-157 and TB-500 are commonly stacked for enhanced healing benefits. This combination is particularly effective for sports injuries, post-surgical recovery, and chronic pain conditions. BPC-157 promotes angiogenesis (blood vessel formation) and gut healing, while TB-500 enhances cell migration and tissue remodeling. The typical stack uses 250-500mcg BPC-157 daily plus 2-2.5mg TB-500 twice weekly.

NAD+ Questions

What is the proper dose for NAD+?

NAD+ supplementation varies by form:

Unlike other peptides, NAD+ can be used continuously without cycling. For anti-aging benefits, consistent daily use is recommended. Start with lower doses to assess tolerance, as NAD+ can cause nausea or headaches in some individuals.

What are the benefits of NAD+ for anti-aging?

NAD+ supports anti-aging through multiple mechanisms:

Research from Harvard Medical School has highlighted NAD+’s critical role in aging and longevity.

Dosing and Administration Questions

How often should I inject peptides?

Injection frequency depends on the specific peptide:

Always follow established protocols and rotate injection sites to prevent tissue irritation.

Should I cycle peptides?

Most experts recommend cycling peptides to prevent receptor desensitization:

Cycling helps maintain natural hormone production and reduces side effects.

Where should I inject peptides?

Common injection sites for subcutaneous administration:

Rotate sites to prevent irritation. For injury-specific peptides, some protocols suggest injecting near (not into) the injury site.

Side Effects and Safety Questions

What are the common side effects of peptides?

Most peptides are well-tolerated, but potential side effects include:

Most side effects are mild and resolve with continued use or dose adjustment.

Who should not use peptides?

Certain individuals should avoid peptides or consult their healthcare provider:

Can women use peptides?

Yes, women can safely use many peptides. BPC-157, TB-500, and NAD+ work similarly in both men and women. Growth hormone secretagogues can help women with recovery, skin quality, and body composition. Women should avoid peptides that significantly affect androgen levels. Doses may be adjusted based on body weight.

Purchasing and Quality Questions

How do I know if a peptide vendor is legitimate?

Legitimate peptide vendors share these characteristics:

See our Best Peptide Vendors page for verified sources.

What should I look for in a COA?

A valid Certificate of Analysis should show:

Storage and Preparation Questions

How should I store peptides?

Proper storage is critical for peptide stability:

How do I mix (reconstitute) peptides?

To properly reconstitute peptides:

  1. Remove peptide vial and bacteriostatic water from refrigeration
  2. Wipe both vial tops with alcohol swabs
  3. Draw appropriate amount of bacteriostatic water (typically 2mL for 5mg vial)
  4. Slowly inject water into peptide vial, aiming at the side wall
  5. Gently swirl until dissolved—never shake
  6. Store in refrigerator immediately

Example: Mixing 2mL water with 5mg BPC-157 gives you 250mcg per 0.1mL (10 units).

What supplies do I need for peptide therapy?

Essential supplies include:

Additional Resources

Still have questions? Explore our other resources:

Where can I buy high-quality peptides?

We recommend purchasing from vendors with third-party testing, Certificates of Analysis (COA), and proper storage practices. Top options include:

For detailed vendor reviews and comparison, see our Best Peptide Vendors 2026 guide.

Medical Disclaimer

The information provided on this website is for educational purposes only. Peptides are sold for research purposes and are not FDA-approved for human consumption. Always consult with a qualified healthcare provider before starting any new supplement protocol, especially if you have existing health conditions, are taking medications, are pregnant, or are breastfeeding. Individual results may vary.