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Peptide Glossary

The compounds, explained.

A plain-English reference for every peptide and small molecule we put in a strip. What it does, how it works, and which formula it lives in — with the dosing detail your clinician will look at during intake.

8 compounds across 7 formulas Pharmaceutical-grade, third-party tested Every order clinician-reviewed before it ships
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BPC-157
Body Protection Compound · 15 amino acids
Regenerative

Acts locally at sites of tissue damage, supporting the body's normal repair signaling — addressing inflammation, soft-tissue, and gut-lining repair pathways simultaneously.

  • Faster recovery from training, sprains, and overuse without anti-inflammatory side effects.
  • Tendon, ligament, and connective-tissue health, especially during high-load training.
  • Gut barrier integrity — BPC-157 was originally isolated from gastric juice.
Clinical notes. Well-tolerated in studies to date; long-term human data still emerging. Typical cycling: 5 days on, 2 days off, for 8–12 weeks.
Found in Recovery
CJC-1295
GHRH analog · without DAC
Hormonal

A growth hormone-releasing hormone analog. Stacked with Ipamorelin, it amplifies the body's natural GH pulses — particularly during sleep — without the prolonged elevation associated with synthetic HGH.

  • Deeper slow-wave sleep, where GH pulses naturally occur.
  • Lean-mass maintenance and fat metabolism, especially after age 35.
  • Faster training recovery and improved daily energy.
Clinical notes. Best taken 30–60 minutes before sleep. Typical cycling: 12 weeks on, 4 weeks off. Milder side-effect profile than synthetic HGH.
Found in Vitality
GHK-Cu
Glycyl-l-histidyl-l-lysine copper complex
Skin & Tissue

A naturally occurring copper-binding peptide. Plasma levels run ~200 ng/mL in your twenties and decline to ~80 ng/mL by your sixties — tracking closely with the visible markers of skin aging.

  • Fibroblast activity and collagen production — the structural protein behind firm, supple skin.
  • Skin barrier function, even tone, and the appearance of fine lines.
  • Follicle health and the natural hair growth cycle.
Clinical notes. Topical GHK-Cu has been studied for decades. Sublingual delivery offers a systemic route — reaching skin and follicles through the bloodstream rather than the surface barrier.
Found in Glow
Glutathione
L-glutathione, reduced · tripeptide antioxidant
Antioxidant

The body's most abundant intracellular antioxidant. Poorly absorbed when swallowed, which is why IV glutathione exists — sublingual delivery routes it through the oral mucosa, bypassing the digestive breakdown.

  • Phase II liver detoxification — how your body processes everyday environmental load.
  • Reducing oxidative stress that contributes to dullness and uneven skin tone.
  • Scavenging free radicals inside the cell, where vitamin E cannot reach.
Clinical notes. Reset uses 250 mg total / ~8 mg per strip. Effects on skin tone build slowly — typically 8+ weeks of consistent use.
Found in Reset
Ipamorelin
Selective GH secretagogue
Hormonal

A selective growth hormone secretagogue. Paired with CJC-1295, it amplifies the body's natural GH pulses without the cortisol or prolactin spikes associated with broader-acting agents.

  • Sleep quality and morning recovery, by supporting natural GH pulses.
  • Body composition during training cycles.
  • Cleaner side-effect profile than non-selective secretagogues.
Clinical notes. Typically taken with CJC-1295 before sleep. Sublingual absorption puts both peptides in circulation rapidly.
Found in Vitality
NAD+
Nicotinamide adenine dinucleotide
Cellular Energy

A coenzyme used by every cell as fuel for mitochondrial energy production and as a cofactor for the sirtuins — the enzymes that govern DNA repair and metabolic regulation. Levels decline steadily after 30.

  • Steady, sustained energy without the spike-and-crash of stimulants.
  • DNA repair and the daily wear sirtuins are responsible for clearing.
  • Cognitive sharpness, metabolic flexibility, and cellular resilience as you age.
Clinical notes. Longevity uses 1000 mg total / ~33 mg per strip. Sublingual delivery via the buccal membrane bypasses first-pass metabolism. Most users report a noticeable lift within 1–2 weeks.
Found in Longevity
PT-141
Bremelanotide · melanocortin receptor agonist
Sexual Wellness

Acts on melanocortin receptors in the central nervous system — where the actual experience of desire originates — rather than on blood flow. The mechanism applies to people of any gender.

  • Desire and arousal, distinct from vascular response.
  • Faster onset — sublingual absorption typically peaks within 30–60 minutes.
  • Lower-dose formulation focused on connection rather than pharmacological override.
Clinical notes. Spark uses 1000 mcg total / ~33 mcg per strip, plus oxytocin acetate and a supporting amino-acid blend. Take 45–60 minutes before intimacy. Limit to 2–3 strips per week. Not for daily use; not to be combined with vascular medications without clinician guidance.
Found in Spark
Thymosin Alpha-1
28-amino-acid thymic peptide
Immune

Naturally produced by the thymus to help shape T-cell function during development. Production declines significantly with age — by sixty, the thymus is largely involuted. This is a regulator: it supports balance, not amplification.

  • Regulating T-cell activity — helping the immune system respond appropriately rather than over- or under-react.
  • Daily defense during travel, seasonal transitions, and high-stress periods.
  • Baseline cellular protection alongside its immune-regulatory role.
Clinical notes. Acts on different pathways than typical immune supplements. Typical cycling: 5 on, 2 off across 12 weeks. Not recommended for people with autoimmune conditions without clinician guidance.
Found in Resilience
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This page is reference, not prescription.

Every strips. formula is a telehealth-gated product. Every order is reviewed by a US-licensed clinician before it ships, and the dosing, cycling, and contraindication notes above are for educational context — not personal medical advice.

If you're new and not sure which formula is right for you, the 60-second quiz is a good place to start. Or browse the full lineup.