What is the difference between Cortagen and NAD+?

Cortagen: A short synthetic peptide bioregulator (Ala-Glu-Asp-Pro) from the Khavinson 'Cytomax/Cytogen' family, marketed for cartilage and connective-tissue support. Evidence is largely Russian-language and pre... NAD+: NAD+ (nicotinamide adenine dinucleotide) is a coenzyme present in all living cells, not a peptide. It is classified here alongside peptides for user convenience in the anti-aging / metabolic category....

Cortagen vs NAD+

Q: Can you stack Cortagen and NAD+?

Cortagen (recovery) and NAD+ (metabolic) are in different categories and are sometimes researched together in combined protocols. Consult a licensed provider before combining any compounds.

Head-to-head comparison of Cortagen and NAD+ — mechanism, side effects, legal status, and pricing.

Cortagen

A short synthetic peptide bioregulator (Ala-Glu-Asp-Pro) from the Khavinson 'Cytomax/Cytogen' family, marketed for cartilage and connective-tissue support. Evidence is largely Russian-language and preclinical.

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NAD+

NAD+ (nicotinamide adenine dinucleotide) is a coenzyme present in all living cells, not a peptide. It is classified here alongside peptides for user convenience in the anti-aging / metabolic category. NAD+ plays a central role in cellular energy metabolism and redox reactions and is studied for its involvement in mitochondrial function, DNA-damage signaling via sirtuins and PARPs, and age-associated metabolic decline. IV NAD+ is not FDA-approved for any clinical indication; it is administered off-label through compounding pharmacies and functional-medicine clinics with limited rigorous outcome data.

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Cortagen

NAD+

Category

Recovery

Metabolic

Legal Status

Research Only

Mechanism

Proposed peptide-bioregulator activity influencing tissue-specific gene expression; mechanism is not established by independent Western research.

NAD+ functions as a primary electron carrier in glycolysis, the TCA cycle, and oxidative phosphorylation. Beyond its redox role, NAD+ serves as a consumable substrate for sirtuin deacetylases (SIRT1-7), poly(ADP-ribose) polymerases (PARPs), and CD38/CD157 ectoenzymes. Sirtuin activation is linked to mitochondrial biogenesis, autophagy, and stress-response gene expression, and PARP activity is central to DNA-damage repair. Oral bioavailability of intact NAD+ is poor, which is why clinics market IV infusion; the best human data for raising tissue NAD+ involve oral precursors NR (nicotinamide riboside) and NMN (nicotinamide mononucleotide) rather than NAD+ itself.

Side Effects

Not well characterized

Flushing and warmth during IV infusion (rate-dependent)
Chest tightness or pressure with fast infusion
Nausea and abdominal cramping
Anxiety or restlessness during infusion
Headache and post-infusion fatigue
Theoretical acute methyl-group depletion with very high-dose repeated IV

Where Researchers Are Buying

Live · updated daily

COA-verified vendors · trust score ≥70 required · single-vial price — bulk/bundle deals may be lower

Cortagen

Best $/mg

$2.75/mg

PeptidologyB

3 trusted vendors listing

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NAD+

Best $/mg

$0.040/mg

Peptide Supply Co.B

22 trusted vendors listing

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Lab Verification

COA corpus from Disclosed Labs — independently tested batches only.

Cortagen

COAs

99.6%

Avg purity

Labs

Full testing data

NAD+

146

COAs

99.4%

Avg purity

Labs

Full testing data

Cortagen Research Summary

Primarily Russian institutional studies; no large independent controlled human trials.

NAD+ Research Summary

The strongest human evidence for raising circulating NAD+ comes from oral-precursor trials. A randomized, double-blind, placebo-controlled study of nicotinamide riboside combined with pterostilbene (NRPT) showed sustained dose-dependent increases in whole-blood NAD+ over 8 weeks in healthy adults (Dellinger et al., npj Aging and Mechanisms of Disease, 2017). A Yoshino/Baur/Imai review summarizes the biology and emerging therapeutic potential of NR and NMN, including preclinical healthspan data in aged mice (Cell Metabolism, 2018). Direct IV NAD+ has only small pilot pharmacokinetic data: Grant et al. infused 750 mg over 6 hours in 8 healthy men and documented altered plasma and urine NAD+ metabolome without clinical-outcome endpoints (Frontiers in Aging Neuroscience, 2019). No adequately powered RCTs support IV or SubQ NAD+ for anti-aging, cognition, addiction, or Parkinson's disease; clinic marketing claims outrun the published outcome evidence.

Key references

Can you stack Cortagen and NAD+?

Cortagen (Recovery) and NAD+ (Metabolic) are in different categories and target different biological pathways. This is a common pattern in multi-compound research protocols. Researchers should monitor the biomarkers from both profiles and watch for interactions listed in each compound’s contraindications. Consult a licensed healthcare provider before combining any research compounds.

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This platform provides informational tools only, not medical advice. This comparison is for educational purposes only. Consult a licensed provider.