Understand the source comparison
Best Peptides for Smoking Cessation Support: Research-Grade Comparison
Every peptide mentioned here is available as a research-grade compound through Real Peptides' full peptide collection. We mean this sincerely: the purity and sequencing accuracy matter more in cessation protocols than in almost any other peptide application be
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Every peptide mentioned here is available as a research-grade compound through Real Peptides' full peptide collection. We mean this sincerely: the purity and sequencing accuracy matter more in cessation protocols than in almost any other peptide application because withdrawal already stresses multiple organ systems simultaneously. Impure or incorrectly synthesized peptides compound that stress rather than relieving it.
- Selank
- GABAergic modulation + BDNF upregulation
- Anxiety, irritability, anhedonia
- 250–750 mcg intranasal or subQ daily
- 48–72 hours
- Strongest evidence for acute anxiety reduction; works without sedation
- P21
- Hippocampal neurogenesis + synaptic plasticity
- Cognitive impairment, memory deficits
- 1–5 mg subQ every 48–72 hours
- 5–7 days
- Best option for reversing nicotine-induced cognitive decline
- Thymalin
- Thymic peptide restoration
- Immune suppression, fatigue
- 5–10 mg subQ 2–3× weekly
- 7–14 days
- Addresses the immune rebound most protocols ignore
- Cerebrolysin
- Neurotrophic factor delivery
- Dopamine receptor recovery
- 5–10 mL IV or IM 5 days/week
- 10–14 days
- Requires clinical administration but shows dopaminergic repair
- Dihexa
- BDNF receptor potentiation
- Long-term neural rewiring
- 1–5 mg oral daily
- 14–21 days
- Experimental; supports sustained abstinence in animal models