Beginner's Guide to Peptides
Everything you need to know before starting your first peptide protocol — how they work, which to choose for your goal, how to reconstitute and inject, and how to build your first 30-day plan.
What We Cover
- 1What are peptides — and how they differ from regular supplements
- 2The four goal categories and which peptides belong to each
- 3How to choose your first peptide based on your goal
- 4Reconstitution and injection basics
- 5Cycling and protocol design
- 6Critical safety considerations
- 7Your first 30-day protocol
1. What Are Peptides?
Peptides are short chains of amino acids — the same building blocks as proteins, but smaller and more targeted in their biological action. Your body produces its own peptides as signaling molecules: growth hormone, insulin, and glucagon are all peptides. Therapeutic peptides are synthetically manufactured versions of these endogenous signals, designed to activate the same biological pathways.
Unlike traditional supplements, which provide raw material your body might be deficient in, peptides are precise molecular instructions. BPC-157 doesn't supplement a nutrient — it directly signals fibroblast proliferation, angiogenesis, and growth hormone receptor upregulation at the cellular level.
MaxxingPeptides covers four goal categories: healing and recovery, fat loss, performance, and anti-aging. Every compound is sourced through Apollo Peptide Sciences and selected for mechanism clarity, documented human use, and protocol specificity.
2. The Four Goal Categories
Choose your primary goal first. Each category operates through a different biological mechanism — there is no single peptide that does everything well.
Tissue repair signaling
Tendon, ligament, gut, nerve, and muscle repair
Key compounds: BPC-157, TB-500, GHK-CU
Fat LossGLP-1 / GIP / glucagon receptor agonism
Appetite suppression, insulin regulation, metabolic rate increase
Key compounds: Semaglutide, Tirzepatide, Retatrutide
PerformanceGH axis stimulation + IGF-1
Lean muscle growth, faster recovery, body recomposition
Key compounds: CJC-1295 / Ipamorelin, IGF-1 LR3
Anti-AgingTelomerase activation, gene modulation, NAD+ metabolism
Cellular longevity, skin quality, mitochondrial function
Key compounds: Epithalon, GHK-CU, NAD+, SNAP-8
3. How to Choose Your First Peptide
The biggest mistake beginners make is starting with too many compounds at once. Run one peptide per goal for 8–12 weeks and evaluate before adding anything else.
First Peptide by Goal
BPC-157 10mg — 250–500mcg subcutaneous, daily
Fastest onset of any healing peptide. Measurable pain and mobility improvement within 2–4 weeks.
Semaglutide 5mg — start 0.25mg/week, titrate slowly
Most documented GLP-1. The established first step before considering tirzepatide or retatrutide.
CJC-1295 / Ipamorelin — 100mcg each before bed
Pulsatile GH release that mirrors natural rhythm. Clean lean mass gains without HPTA suppression.
Epithalon 50mg — 10mg/day for 10 consecutive days
Course-based protocol. Run twice per year. Matches established human trial dosing approach.
4. Reconstitution & Injection Basics
Most peptides arrive as lyophilized (freeze-dried) powder and must be reconstituted with bacteriostatic water before use. The process is simple and takes under 5 minutes.
What is bacteriostatic water?
Sterile water with 0.9% benzyl alcohol, which prevents bacterial contamination in multi-dose vials. Do not substitute plain sterile water — it has no preservative and your reconstituted peptide will degrade significantly faster.
How to reconstitute a vial
Draw 1–2ml of bacteriostatic water into an insulin syringe. Insert the needle at the vial wall and let water run slowly down the glass — do not jet it directly onto the powder. Gently swirl (never shake). Let sit 2–3 minutes until fully clear.
Subcutaneous injection technique
Pinch a fold of skin on your abdomen or flank. Insert a 29–31 gauge insulin syringe at a 45–90 degree angle. Inject slowly. Alternate injection sites each use to prevent lipohypertrophy. Sub-Q is preferred for most peptides — slower, more consistent absorption than intramuscular.
Dosing math example
Example: 10mg BPC-157 vial + 2ml BAC water = 5,000mcg/ml. For a 250mcg dose: draw 0.05ml (5 units on a 100-unit insulin syringe). Each product page on this site includes a full reconstitution and dosing table.
5. Cycling & Protocol Design
Different peptide classes have different cycling requirements based on receptor adaptation and mechanism:
| Peptide | Protocol | Notes |
|---|---|---|
| BPC-157 | 8–12 weeks on, 4 weeks off | Off period resets receptor sensitivity |
| TB-500 | 6-week loading (2×/week), then 2×/month maintenance | Loading phase saturates Thymosin Beta-4 levels systemically |
| Semaglutide / Tirzepatide | Continuous titration protocol | Therapeutic window maintained continuously — no cycling needed |
| CJC-1295 / Ipamorelin | 5 days on / 2 days off | Mirrors natural pulsatile GH secretion rhythm |
| Epithalon | 10-day course, 2× per year | Telomerase activation is cumulative across courses |
| GHK-CU | 12 weeks continuous | Epigenetic gene modulation accumulates with sustained use |
| IGF-1 LR3 | 4 weeks on, 4 weeks off | Prevents receptor desensitization from extended use |
6. Critical Safety Notes
Always use bacteriostatic water — not plain sterile water — for multi-dose vials. Store reconstituted peptides refrigerated at 2–8°C and use within 28 days.
Use 29–31 gauge insulin syringes for all subcutaneous injections. Rotate sites (abdomen, flanks) to prevent lipohypertrophy.
GLP-1 class peptides (semaglutide, tirzepatide, retatrutide): consult a physician if you are diabetic or take insulin — hypoglycemia risk with concurrent use.
Start every new peptide at the lowest effective dose. Give at least 2–4 weeks before adjusting upward. Add only one new compound at a time.
Ready to start your first protocol?
View a complete pre-designed stack for your goal, or browse all peptides and build your own.