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| Peptide | Research Focus / Applications | Typical Nasal Concentration | Administration Protocol | Notes & Mechanisms |
| PT-141 | Sexual dysfunction, libido modulation, neural pathways of arousal | 0.1–1 mg/mL | 1–2 sprays per nostril per study session | CNS melanocortin receptor agonist; nasal absorption bypasses GI metabolism |
| Kisspeptin | Reproductive hormone regulation, fertility studies, mood, and social behavior | 0.1–1 mg/mL | 1 spray per nostril 1–2× daily | Stimulates GnRH; crosses the blood-brain barrier via the nasal mucosa |
| Semax | Neuroprotection, cognitive enhancement, and BDNF increase | 0.1% – 1% | 1–4 sprays per nostril daily | Modulates dopamine/serotonin; direct CNS access via olfactory pathways |
| Selank | Anxiety reduction, stress resilience, memory modulation | 0.1–0.5 mg/mL | 1–3 sprays per nostril daily | Stabilizes serotonin; often paired with Semax |
| Oxytocin | Social bonding, PTSD, autism spectrum, and emotional research | 10–24 IU per spray | 1–2 sprays per nostril 1–3× daily | Direct CNS delivery; interacts with PT‑141 in behavioral studies |
| BPC‑157 | Tissue repair, regenerative medicine, and inflammation studies | 0.1–1 mg/mL | 1–2 sprays per nostril daily | Promotes angiogenesis and tissue recovery in preclinical models |
| KPV | Anti-inflammatory, immune modulation | 0.1–1 mg/mL | 1 spray per nostril daily | Synergistic with BPC‑157 in tissue repair research |
| Weight | 2 oz |
|---|---|
| Dimensions | 4 × 2 × 6 in |
| Options | 5mL Kit, 30mL Kit, Variety Pack |
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FAQ
Everything you need to know about TIRTIR – Mask Fit Waterproof Setting Spray
In-stock products typically ship within 1–2 business days after payment clears. Orders are shipped Monday through Friday, excluding federal holidays. Temperature-sensitive products generally ship Monday through Thursday to help ensure they arrive safely.
Temperature-sensitive products are shipped Monday through Thursday. During hot weather, Xq recommends upgrading your shipping speed and adding package protection or cold-pack options to help protect your products during transit.
Free shipping is provided through USPS Ground Advantage or UPS Ground Select, with an estimated delivery time of approximately 5–6 days. Faster shipping options and additional protection may be available as upgrades.
Backordered products are identified on their product pages and may delay the shipment of your entire order. If you would like your in-stock products sooner, you can place a separate order for those items.
If your order is delayed, lost, damaged, or arrives in an unexpected condition, Xq will do its best to assist you. However, delivery issues caused by third-party carriers or conditions outside Xq’s control may not be covered. For temperature-sensitive products, cold-pack and cooler options are recommended for additional protection.
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