Valeo Education Series
Understanding
Peptides
The science behind your protocol — what peptides are, how they work, what to expect, and how to use them wisely.
01
What Are Peptides?
Molecular Messengers
Peptides are short chains of amino acids — typically 2 to 50 — that act as signalling molecules throughout your body. Think of them as highly specific text messages sent between cells.
Nature's Own Design
They occur naturally in your body. Insulin is the most famous peptide hormone — it signals your cells to take up glucose. Your body already relies on hundreds of peptide signals every second.
Targeted Action
Unlike broad-spectrum medications, peptides are highly specific. They "dock" into one particular receptor type on your cells to trigger one particular response — without disrupting unrelated systems.
02
How They Work In the Body
The Mechanism — Step by Step
Tap each stage to explore the biological process from administration to effect.
Signal
Lock & Key
Cascade
Result
📡
Peptide
Cellular Signalling
The peptide is administered (injection or nasal spray) and enters circulation. It sends a highly specific "memo" to your cells — such as "release growth hormone," "repair this tendon," or "reduce this inflammation." Nothing else in the system is disturbed.
🔐
Receptor Bind
Lock & Key Mechanism
The peptide searches for its exact matching receptor — like a key searching for its lock. When it finds the right receptor on the right cell, it binds to it. This binding is selective; BPC-157 won't bind to a GH receptor, and vice versa.
⚡
Signal Cascade
Biological Cascade
Binding initiates a cascade of downstream biological events. A GH-releasing peptide triggers the pituitary to release GH, which then triggers IGF-1 production in the liver, which then promotes protein synthesis in muscle. Each step is natural — the peptide just started the chain.
✨
Outcome
Systemic Optimisation
The end result is a natural biological outcome amplified beyond what your ageing or stressed system would produce alone. Depending on the peptide: modulated immunity, improved gut integrity, new collagen formation, enhanced mitochondrial function — all without disrupting unrelated systems.
03
Are Results Immediate?
The short answer: No.
While some peptides produce an initial shift in energy or sleep quality within days, true physiological change takes time. Peptides work by stimulating natural biological processes — your body still has to physically do the construction work. That biological project takes 4–12 weeks.
Days 1–7
Early Signals
Some peptides (especially sleep and cognitive ones like DSIP and Semax) produce noticeable changes in sleep quality, mood, or mental clarity within the first week. This is direct receptor activation — not structural change.
Weeks 2–4
Biological Construction Begins
The body begins building the structural changes: new collagen fibres form, blood vessels develop (angiogenesis), growth hormone levels stabilise at a higher baseline. You may notice reduced soreness, better recovery, or improved skin texture.
Weeks 4–8
Measurable Results
This is where the "project" becomes visible — body composition shifts, injury pain decreases substantially, cognitive performance improves consistently, sleep architecture normalises. For most protocols, this is the primary results window.
Weeks 8–16
Full Protocol Effect
Cumulative and peak effects. Lean mass changes solidify, healed tissue remodels fully, hormonal optimisation stabilises. After this window, a cycle break (4–8 weeks) is recommended to prevent receptor desensitisation and maintain sensitivity.
04
Common Questions
Absolutely not. Peptides are the "1% edge" — they make a good lifestyle work better, but they cannot fix a broken foundation. If your diet is inflammatory, your training non-existent, and your sleep poor, peptides are essentially a waste of money.
Foundation
Diet · Training · Sleep
+
Peptides
The Turbocharger
Think of diet, sleep, and movement as the fuel and the engine. Peptides are the turbocharger — they make a well-tuned system extraordinary, but they cannot power a broken one.
No — and this is critical. Taking higher doses does not lead to faster results; it leads to receptor desensitisation. Your body is a master of balance (homeostasis). If you flood the system with too much signal, your cells will "plug their ears" (downregulate receptors), making the peptide less effective over time.
Explore the dose-response relationship:
Explore the dose-response relationship:
Too Low
Minimum Effective
Excessive
✓ Minimum Effective Dose. This is the Valeo philosophy — the smallest dose that produces the desired biological effect, preserving receptor sensitivity for the long term.
Peptides have a generally favourable safety profile compared to most pharmaceuticals — they are biologically identical to compounds your body already produces and are rapidly degraded by normal enzymatic processes. However, risks exist and should be respected:
At appropriate doses: Mild injection site reactions (redness, itching) are the most common side effects, typically resolving within hours.
At excessive doses: Water retention, joint discomfort, transient glucose instability, increased cortisol (with certain GH secretagogues), and numbness or tingling are possible. Excessive GH stimulation over long periods can cause acromegaly-like symptoms.
At appropriate doses: Mild injection site reactions (redness, itching) are the most common side effects, typically resolving within hours.
At excessive doses: Water retention, joint discomfort, transient glucose instability, increased cortisol (with certain GH secretagogues), and numbness or tingling are possible. Excessive GH stimulation over long periods can cause acromegaly-like symptoms.
⚕ Always consult a qualified physician before beginning any peptide protocol. These are research compounds.
Your body's receptor systems adapt to chronic stimulation through a process called downregulation — reducing the number and sensitivity of receptors to maintain homeostasis. This is the same reason chronic caffeine use produces diminishing energy returns.
Cycling off peptides for 4–8 weeks allows receptors to upregulate back to baseline — so when you restart, you regain full sensitivity and full effect. Running peptides continuously without breaks will ultimately make them ineffective and may suppress your body's natural production of the very hormones you're trying to optimise.
Exception: Some peptides (like BPC-157 for acute injury, or Semaglutide for metabolic management) may be run for longer under physician supervision.
Cycling off peptides for 4–8 weeks allows receptors to upregulate back to baseline — so when you restart, you regain full sensitivity and full effect. Running peptides continuously without breaks will ultimately make them ineffective and may suppress your body's natural production of the very hormones you're trying to optimise.
Exception: Some peptides (like BPC-157 for acute injury, or Semaglutide for metabolic management) may be run for longer under physician supervision.
Peptides are fragile proteins. Proper handling preserves potency:
Lyophilised (powder) — Unopened: Store in freezer (−20°C) for up to 24 months or refrigerator (2–8°C) for 3–6 months. Keep away from light.
Reconstituted (with BAC water): Store in refrigerator only. Use within 4–6 weeks. Never freeze reconstituted peptide.
Critical rules:
Lyophilised (powder) — Unopened: Store in freezer (−20°C) for up to 24 months or refrigerator (2–8°C) for 3–6 months. Keep away from light.
Reconstituted (with BAC water): Store in refrigerator only. Use within 4–6 weeks. Never freeze reconstituted peptide.
Critical rules:
- Never shake — always gently swirl or roll the vial
- Add BAC water slowly down the side of the vial
- Avoid temperature swings and direct light
- Use bacteriostatic water — never sterile water (which has no preservative)
Ready to build your
personalised protocol?
personalised protocol?
Answer a few questions about your goals and we'll build a tailored peptide stack — with dosing, scheduling, and everything added to your cart.
Personalised Peptide Protocol
Which peptide
class calls to you?
Select one or more categories. We'll ask a few targeted questions and build a coordinated stack tailored to your biology.
⚕ Research compounds — consult your physician before use
Growth Hormone–Releasing Peptides
Recovery
Muscle
Sleep
💬 In plain English: These peptides tell your body to release more natural growth hormone so it repairs itself better — faster recovery, better sleep, and improved body composition.
Recovery
Slow healing after workoutsSoreness that lasts too long
Body Composition
Stubborn body fatDifficulty building muscle
Sleep
Poor deep sleepWaking up tired
Energy & Skin
Low physical staminaCollagen lossThinning skin
Examples
CJC-1295IpamorelinSermorelin
Regenerative & Healing Peptides
Injuries
Inflammation
💬 In plain English: These peptides tell the body "repair this tissue faster" — targeting joints, muscles, gut, and skin at the cellular level.
Joint & Tendon
TendonitisLigament injuriesChronic joint pain
Muscle Injuries
Pulled musclesSports injuries
Inflammation
Chronic inflammationSlow healing injuries
Gut & Skin
Stomach lining damageWoundsHair thinning
Examples
BPC-157TB-500GHK-Cu
Metabolic & Fat-Loss Peptides
Weight
Appetite
Blood Sugar
💬 In plain English: These peptides reduce hunger and improve how the body burns sugar and fat — targeting the hormonal root of weight gain rather than willpower.
Weight & Appetite
Constant hungerDifficulty losing weightFood cravings
Blood Sugar
Insulin resistancePre-diabetesSugar cravings
Metabolism & Fat
Slow fat burningBelly fat accumulation
Examples
TirzepatideSemaglutideRetatrutide
Cognitive & Nootropic Peptides
Brain Fog
Focus
Stress
💬 In plain English: These peptides help the brain communicate better and repair neural connections — improving focus, memory, and stress resilience.
Brain Fog & Focus
Slow thinkingDifficulty concentratingMental fatigue
Memory
ForgetfulnessLearning difficulties
Stress & Motivation
Overactive stress responseAnxietyLow motivationBurnout
Examples
SemaxSelankPinealon
Longevity & Cellular Protection
Aging at the DNA level
💬 In plain English: These peptides try to slow down the aging process at the cellular level — protecting DNA, lengthening telomeres, and restoring the body's repair systems.
Cell Aging
Shortening telomeresCellular damageOxidative stress
Immune & Hormonal
Weaker immunity with ageSlower regeneration
Sleep & Circadian
Disrupted circadian rhythmPoor melatonin production
Examples
EpithalonGHK-CuThymosin Alpha-1
Mitochondrial Peptides
Energy production in cells
💬 In plain English: These peptides repair the cell's power plants (mitochondria) so cells produce energy better — fighting fatigue, metabolic aging, and muscle decline at the source.
Cellular Energy
Chronic fatiguePoor endurance
Metabolic Aging
Slower metabolismInsulin resistanceMetabolic dysfunction
Muscle & Brain
Age-related muscle lossReduced neuron energy
Examples
SS-31MOTS-CNAD+
Condition Support
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Your Protocol
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Quick Reference
Peptide Cheat Sheet
Everything you need to know before your first injection — supplies, timing rules, storage, shelf life, and the do's and don'ts most people learn the hard way.
Supplies You'll Need
Have these ready before your peptides arrive
Insulin Syringe — 1 mL / 29–31G
Used for all subcutaneous peptide injections. 29G for comfort; 31G is ultra-fine. Pre-attached needle preferred.
3 mL Syringe — for Reconstitution
Draw BAC Water into a 3 mL syringe before transferring to the peptide vial. Gives you control over the exact volume added.
18G Drawing Needle
Use an 18G needle to draw BAC Water into the syringe. Swap to your injection needle (29–31G) before injecting. Never inject with the 18G.
Bacteriostatic Water (BAC Water)
Sterile water with 0.9% benzyl alcohol — safe for reconstituting peptide vials. Do not use plain sterile water or tap water.
Alcohol Swabs (70% Isopropyl)
Swab the rubber septum of every vial before each draw. Swab the injection site (belly fat, outer thigh) before injecting.
Refrigerator (2–8 °C)
Required once peptides are reconstituted. A dedicated shelf in your regular fridge works well. Keep away from the door — temperature fluctuates there.
Sharps Container
Mandatory for safe needle disposal. Available at most pharmacies. Never recap used needles or dispose in regular trash.
Label + Date Stickers
Label every reconstituted vial with the peptide name and the date you added BAC Water. Critical for tracking shelf life.
Reconstituting Your Peptides
How to turn powder into injectable solution safely
1
Let the vial reach room temperature (15 min out of the fridge). Cold powder reconstitutes unevenly.
2
Using a 3 mL syringe with an 18G drawing needle, draw the desired volume of BAC Water (typically 1–2 mL).
3
Swab the rubber septum of the peptide vial with an alcohol swab. Let it air-dry for 5–10 seconds.
4
Insert the needle into the vial and slowly drip the BAC Water down the inside wall — never squirt directly onto the powder. This prevents denaturation.
5
Gently swirl (do not shake). The powder should dissolve into a clear, colourless solution within 30–60 seconds.
6
Label the vial with the peptide name and today's date. Refrigerate immediately. Discard the 18G needle safely.
Shelf Life Guide
How long your peptides remain potent
State
Storage
Duration
Notes
Lyophilised Powder
Room temp, dark
12–24 months
Stable as shipped. Keep sealed, away from heat and humidity.
Lyophilised Powder
Freezer (−20 °C)
Up to 36 months
Ideal long-term storage for bulk supply. Defrost fully before reconstituting.
Reconstituted
Fridge (2–8 °C)
28–30 days
Once BAC Water is added, the clock starts. Label your vial with the date. Discard after 30 days regardless of remaining volume.
Reconstituted
Room temp
⚠ 24–72 hours max
Do not leave reconstituted peptides at room temperature. Denaturation and bacterial growth accelerate rapidly above 8 °C.
BPC-157 (capsule)
Room temp, dark
12–18 months
Oral BPC does not require reconstitution. Store sealed in a cool, dry place.
How to check for degradation: Discard any reconstituted peptide that appears cloudy, discoloured, or has visible particles. A clear, colourless solution is the standard. When in doubt — throw it out.
Do's & Don'ts
The rules most people learn the hard way
✓ Do
Rotate injection sites. Belly fat (periumbilical), outer thigh, or flank. Rotate each session to prevent lipodystrophy and site fatigue.
Inject growth hormone secretagogues on an empty stomach. Aim for 2 hours after eating and 30+ minutes before food. Insulin blunts GH release significantly.
Time GH peptides before sleep. CJC-1295/Ipamorelin and Sermorelin work best injected 30–60 min before bed — they amplify the natural midnight GH pulse.
Keep a log. Note your dose, time, site, and any response. This makes it easy to spot patterns and adjust your protocol.
Space injections at least 3 hours apart when dosing more than once daily. Stacking injections too closely causes receptor desensitisation.
Use an insulin syringe for all subcutaneous injections. 1 mL, 29–31G. Smaller gauge = less discomfort and no bruising.
Refrigerate immediately after reconstitution. Even brief exposure to warmth degrades peptide bonds.
Take BPC-157 orally for gut healing. For GI conditions, oral capsules outperform injections — the peptide acts topically along the intestinal wall.
✗ Don't
Don't shake the vial. Swirl gently only. Shaking creates air bubbles and breaks the peptide bonds — degrading potency before your first dose.
Don't inject GH peptides after a high-carb meal. Elevated insulin suppresses GH release. Wait 2+ hours or inject fasted (first thing in the morning is ideal).
Don't use plain sterile water. It lacks benzyl alcohol, causing rapid bacterial contamination in multi-use vials. BAC Water only.
Don't inject into a vein. All peptide injections are subcutaneous (into the fat layer), not intramuscular or intravenous.
Don't reuse needles. Needles become micro-barbed after one use, increasing discomfort, bruising, and infection risk. One needle, one use.
Don't leave reconstituted peptides at room temperature for more than a few hours. The 2–8 °C fridge is required — not optional.
Don't stack more than 3–4 peptides without a clear rationale. Synergy is real, but more is not always better — receptor competition and cost both work against you.
Don't ignore water retention in week 1–2 with GH peptides. Mild puffiness is normal as GH increases. It resolves as your body adjusts. Not fat — fluid.
Injection Timing & Spacing Rules
Every peptide in the catalogue — when to inject, and when to wait
Universal spacing rule: Wait a minimum of 60 minutes between any two peptide injections at the same site. Some peptides (GHK-Cu, IGF-1 LR3) require a full 60-minute separation from all other injections due to receptor competition or localised vascular activity. When in doubt, inject at different sites and space by at least 1 hour.
CJC-1295 / Ipamorelin
GH Secretagogue Stack
GH Secretagogue Stack
Fasted only · Pre-sleep preferred · ≥ 3 hrs between doses
Best window: 30–60 min before bed (amplifies midnight GH pulse) or fasted morning. Insulin from a meal will blunt GH release — wait 2 hrs after eating. Separate from any other injection by 60 min minimum.
Sermorelin
GHRH Analogue
GHRH Analogue
Fasted · Pre-sleep · Once or twice daily
Same rules as CJC/Ipamorelin. Pre-sleep injection is most effective — piggybacks the natural nocturnal GH pulse. If twice daily, second dose should be fasted morning. Space from all injections by 60 min.
GHRP-2
Ghrelin Receptor Agonist
Ghrelin Receptor Agonist
Fasted · 2–3× daily · ≥ 3 hrs apart
Often dosed 2–3× per day to amplify multiple GH pulses. Each dose must be fasted. Best windows: fasted morning, pre-workout, pre-sleep. Cortisol and prolactin elevations are possible at higher doses.
HGH 191AA
Recombinant Human Growth Hormone
Recombinant Human Growth Hormone
Morning fasted (anti-aging) · Pre-sleep (body composition)
Anti-aging protocols: fasted morning. Body composition: pre-sleep to leverage the nocturnal GH surge. Once daily. Do not inject with food. Space from other injections by 60 min.
IGF-1 LR3
Long-Acting IGF-1 Analogue
Long-Acting IGF-1 Analogue
⚠ 60 min before/after all injections · Post-workout preferred
Requires full 60-minute isolation. IGF-1 LR3 competes at insulin receptors — injecting close to insulin or other peptides blunts response. Post-workout in a fasted or low-insulin state is ideal. Do not inject at the same site as other peptides within 1 hour.
GHK-Cu
Copper Peptide — Anti-Aging / Hair
Copper Peptide — Anti-Aging / Hair
⚠ 60 min before/after all injections · Morning or evening
Requires full 60-minute separation. GHK-Cu is a copper-chelating peptide — it binds copper ions and can interfere with the absorption of co-injected peptides if given simultaneously. Inject alone, at any time of day. Topical GHK-Cu has no spacing restriction.
BPC-157
Body Protection Compound — Healing
Body Protection Compound — Healing
Flexible timing · No food restriction · Morning simplest
Timing-flexible — can be injected anytime. For localised injury, inject subcutaneously as close to the site as possible. For gut healing, oral capsules are more effective than injection. Space from other injections by 60 min.
TB-500
Thymosin Beta-4 Fragment — Systemic Healing
Thymosin Beta-4 Fragment — Systemic Healing
Flexible timing · 2× per week · Loading then maintenance
Typically dosed twice weekly during a loading phase, then once weekly for maintenance. Not daily. Timing within the day is flexible. Space from same-day injections by 60 min.
KPV
Alpha-MSH Fragment — Gut / Anti-Inflammatory
Alpha-MSH Fragment — Gut / Anti-Inflammatory
Flexible · Oral or SC · Morning preferred
For gut and IBD: oral delivery is more effective (acts topically on the intestinal lining). For systemic inflammation: subcutaneous injection. No food restriction. Space injections from others by 60 min.
AOD-9604 / HGH Fragment 176-191
Lipolytic HGH Fragments
Lipolytic HGH Fragments
Fasted · Morning or pre-workout · 2× daily max
Acts via beta-3 adrenergic receptors — fasted state maximises lipolytic effect. Best windows: fasted morning and/or 30 min before training. Insulin blunts the fat-burning signal. Space from other injections by 60 min.
GLP-1s
Semaglutide, Tirzepatide, Retatrutide, Cagrilintide
Semaglutide, Tirzepatide, Retatrutide, Cagrilintide
Once weekly · Same day every week · Any time of day
Consistency of day matters, not time. Pick a fixed day (e.g. every Monday) and inject in belly, thigh, or upper arm. Can be given at any time — with or without food. Rotate injection sites weekly.
Epithalon
Pineal Tetrapeptide — Longevity
Pineal Tetrapeptide — Longevity
Cycle: 10 days on → 3–6 months off · Pre-sleep preferred
Not a daily long-term compound. The standard protocol is 10 consecutive days of once-daily injection, followed by a 3–6 month break. Pre-sleep injection is preferred to align with pineal/melatonin activity.
SS-31 / MOTS-C
Mitochondrial Peptides
Mitochondrial Peptides
Morning · Fasted or with light meal · Daily
Mitochondrial peptides work on cellular energy cycles — morning dosing aligns with peak mitochondrial activity. MOTS-C can be taken pre-exercise for a metabolic boost. Space from other injections by 60 min.
NAD+
IV / Subcutaneous — Cellular Energy
IV / Subcutaneous — Cellular Energy
IV: clinic session · SC: morning · Not daily long-term
IV delivery is most effective for rapid NAD+ restoration — typically administered in clinic sessions. Subcutaneous NAD+ is dosed in the morning. Avoid late-day dosing as elevated NAD+ can cause alertness and disrupt sleep.
Glutathione
Master Antioxidant — IV preferred
Master Antioxidant — IV preferred
IV: clinic session · SC: morning or evening · Flexible
IV glutathione is the clinical standard for maximum bioavailability. Subcutaneous dosing is a practical alternative. No strict food or fasting requirement. Space from other injections by 60 min.
Thymosin Alpha-1
Thymic Immunomodulator
Thymic Immunomodulator
Flexible · 2× weekly · Morning preferred
Typically dosed twice weekly (e.g. Monday and Thursday). No food restriction. Morning injection is practical for adherence. Space from same-day injections by 60 min.
DSIP
Delta Sleep Inducing Peptide
Delta Sleep Inducing Peptide
Pre-sleep only · 30–60 min before bed
Designed exclusively for pre-sleep use. Inject 30–60 minutes before your intended sleep time. Do not use during the day — onset includes drowsiness. Space from other pre-sleep injections by 60 min.
Semax / Selank
Intranasal Nootropics — Cognitive
Intranasal Nootropics — Cognitive
Intranasal only · Morning · Daily or 5-on-2-off
Administered nasally — not injected. Morning dosing aligns with the natural cortisol peak for maximal cognitive benefit. Avoid late-day use as it may delay sleep onset in some individuals. No spacing restriction from injected peptides.
PT-141 (Bremelanotide)
Melanocortin Agonist — Sexual Health
Melanocortin Agonist — Sexual Health
45–90 min before desired effect · As needed
Onset is 45–60 minutes. Not a daily compound — use as needed. Start at 0.5–1 mg to assess flushing, nausea, and blood pressure response. Space from any same-day injections by 60 min.
MT-2 (Melanotan II)
Tanning / Melanocortin
Tanning / Melanocortin
Evening preferred · Loading phase then as needed
Begin with a low loading dose (0.1–0.25 mg) in the evening to minimise nausea. Build up slowly. Once tanned, maintenance dosing is occasional. Space from other same-day injections by 60 min.
Oxytocin
Bonding / Mood / Anxiolytic
Bonding / Mood / Anxiolytic
Intranasal · As needed or daily · Any time
Most commonly administered as a nasal spray. Onset is rapid (5–15 min). Can be used daily for mood support or situationally. No food restriction. Intranasal has no spacing restriction from injected peptides.
Preparation Guide
Peptide Dose Calculator
Enter your vial size, BAC water volume, and desired dose — get the exact units to draw in your insulin syringe.
mg
mL
Quick:
Fill in vial size, BAC water, and dose above to see your results.
How to Read a U-100 Insulin Syringe
A U-100 syringe holds 100 units = 1 mL of liquid.
Each small line is typically 1 unit (0.01 mL). Some syringes mark every 2 units.
The "units" value above tells you exactly which line to fill to.
Common sizes: 30-unit (0.3 mL), 50-unit (0.5 mL), 100-unit (1 mL) syringes.
If your result is over 100 units, add more BAC water or split into two injections.