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Peptide Database

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Peptides
Adipotide
Weight Management
AOD-9604
Weight Management
BPC-157
Healing & Recovery
Cagrilintide
Weight Management
CJC-1295
Growth Hormone
DSIP
Sleep & Recovery
Epithalon
Anti-Aging
GHK-Cu
Anti-Aging
GHRP-2
Growth Hormone
HCG
Hormone Support
Hexarelin
Growth Hormone
HGH
Growth Hormone
IGF-1 LR3
Growth Hormone
Kisspeptin
Hormone Support
Melanotan-2
Cosmetic
MOTS-C
Metabolic
NAD+
Anti-Aging
Oxytocin Acetate
Hormone Support
PEG-MGF
Recovery
PNC-27
Cancer Research
PT-141
Sexual Health
Retatrutide
Weight Management
Selank
Cognitive
Semaglutide
Weight Management
Semax
Cognitive
Sermorelin
Growth Hormone
Snap-8
Cosmetic
SS-31
Mitochondrial
TB-500
Healing & Recovery
Tesamorelin
Growth Hormone
Thymosin Alpha-1
Immune
Tirzepatide
Weight Management
Total Peptides: 32
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Immune Protocol

ThymalinComplete Dosing & Administration Guide

Russian thymic peptide complex that rejuvenates immune function and supports healthy aging

Dose Range

5-10mg

Frequency

Once daily

Route

Intramuscular injection

Cycle Length

4-6 weeks

Dosing

How much
do I take?

Starting Dose

5 mg daily

Frequency

Once daily

Duration

5 days

Initial dose to assess tolerance and immune response; best for first-time users

Standard Dose

10 mg daily

Frequency

Once daily

Duration

10 days

Standard clinical protocol used in most Russian research studies; most effective dose

Advanced Dose

10 mg Thymalin + 5 mg Epitalon daily

Frequency

Once daily

Duration

20 days, repeated every 6 months

Combined peptide protocol for enhanced longevity and geroprotective effects

Timing

Best time to take

Morning injection for consistency; no stimulant effects so evening is also acceptable

With food?

Can be injected with or without food; food does not affect absorption

If stacking

If combining with Epitalon, both can be injected at the same time or spaced 2-3 hours apart; use separate injection sites

Adjusting Your Dose

Increase if

  • +Well-tolerated after 5 days at starting dose with no side effects
  • +Seeking stronger immune response for illness prevention
  • +Healthcare provider recommends standard or advanced protocol

Decrease if

  • -Experiencing persistent injection site reactions
  • -Low-grade fever lasts more than 24 hours
  • -Unusual fatigue that doesn't resolve within 2 days

Signs of right dose

  • Improved energy levels within 1-2 weeks
  • Fewer colds and respiratory infections over following months
  • Better overall sense of vitality and well-being
  • Improved lab markers (T-cell counts, immune panels) if tested

Dosing Calculator

Calculate Your Exact Dose

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Step 1: Peptide Weight

Find the weight printed on your peptide vial label

Look here!

The weight is on the label

Peptide vial
5mg

Select Weight

mg

Look for a number followed by 'mg' on the vial label (e.g., 5mg, 10mg)

Administration

How do I
use it?

Reconstitution

What you need

  • Thymalin lyophilized vial (10 mg)
  • Sterile water for injection or 0.9% sodium chloride (saline)
  • Sterile syringe (1-3 mL)
  • Sterile needle (25-27 gauge)
  • Alcohol swabs

Example

For a 10 mg dose from a 10 mg vial: Add 1 mL of sterile water to the vial, creating a concentration of 10 mg/mL. Draw the full 1 mL for your 10 mg dose. For a 5 mg dose, draw 0.5 mL.

Dose (mL) = Desired dose (mg) ÷ Concentration (mg/mL). With 10 mg in 1 mL: 5 mg dose = 0.5 mL; 10 mg dose = 1.0 mL.

Injection

Route

Intramuscular (preferred in clinical settings) or Subcutaneous

Best sites

  • Deltoid muscle (upper arm) for intramuscular injection
  • Gluteal muscle (upper outer quadrant) for intramuscular injection
  • Abdomen (2 inches from navel) for subcutaneous injection
  • Front of thighs for subcutaneous injection

Technique

  • 1.Clean injection site thoroughly with alcohol swab and let dry for 30 seconds
  • 2.For IM: Insert needle at 90° angle into muscle; for SC: Pinch skin and insert at 45° angle
  • 3.Inject solution slowly over 5-10 seconds for comfort
  • 4.Withdraw needle and apply gentle pressure with clean swab
  • 5.Rotate injection sites daily to prevent tissue irritation
Full Injection Guide

Storage

Before reconstitution

Store lyophilized vials at 2-8°C (36-46°F) in refrigerator, protected from light, in original packaging. Can tolerate brief room temperature exposure during transport.

After reconstitution

Use immediately after mixing. If not used right away, refrigerate at 2-8°C and use within 1-2 hours maximum. Do not store reconstituted solution overnight.

Signs of degradation

  • Cloudy or hazy solution (should be clear and colorless)
  • Visible particles or floating matter
  • Unusual color change (yellowing or darkening)
  • Unusual odor when opening vial

Sample Daily Schedule

Morning

5-10 mg (based on your dosing tier) injection

Site: Rotate between deltoid, gluteal, abdomen, or thigh daily

Inject at the same time each day for consistency; reconstitute fresh each day

Safety

Is it
safe?

Safety Profile

Thymalin has an excellent safety profile based on over 40 years of clinical use in Russia. Most patients experience zero side effects, and the peptide complex has been described as 'practically non-toxic' in research literature. It has been used safely in thousands of patients, including elderly populations over extended periods.

Safety data comes primarily from Russian clinical studies and decades of medical use. While extensive within Russian medicine, Western randomized controlled trials are lacking. The long track record of use provides reassurance, though evidence quality by international standards is classified as 'limited human trials.'

Common Side Effects

Experienced by some users

No side effects in most patients

The majority of people using Thymalin experience zero adverse effects. Russian clinical literature consistently reports it as remarkably well-tolerated.

Management: Simply monitor how you feel during the course and keep a brief daily log of any changes.

Mild injection site reaction

Slight redness, warmth, or minor swelling at the injection site that typically resolves within a few hours.

Management: Rotate injection sites daily, use proper technique, and apply gentle pressure after injection. Ice can help if swelling occurs.

Less Common

  • Transient low-grade fever
  • Mild flu-like symptoms
  • Temporary headache

These typically resolve with continued use or dose adjustment.

Stop and Seek Help If

  • ×Signs of allergic reaction (swelling, difficulty breathing, widespread rash)
  • ×Persistent fever above 101°F that doesn't resolve within 24 hours
  • ×Severe injection site reaction with spreading redness or signs of infection
  • ×Your healthcare provider recommends discontinuation
  • ×Completion of prescribed course (Thymalin is used in short courses, not continuously)

Always consult your healthcare provider before starting or stopping Thymalin. This information is for educational purposes and does not replace professional medical advice. Thymalin is not FDA approved and should only be used under qualified medical supervision.

Interactions

With other peptides

  • Synergistic combination — together they produce stronger longevity and anti-aging effects than either alone; the most studied Thymalin combination
  • Both support immune function through different mechanisms; combining is safe but may be redundant for some goals
  • Different mechanisms (immune vs healing); can be combined safely with separate injection sites

With medications

  • !Corticosteroids - High-dose corticosteroids may reduce Thymalin's immune-stimulating effects; use together only under medical supervision
  • !Immunosuppressants (tacrolimus, cyclosporine) - Thymalin may counteract immunosuppression; avoid combining without specialist guidance
  • Blood pressure medications - No known interactions; safe to use together
  • Antipsychotic medications - Studies show Thymalin enhances treatment outcomes when used alongside psychiatric medications
  • Antibiotics - Safe to combine; many clinical protocols use them together for infections

With supplements

  • Vitamin D - Complementary immune support; both work through different pathways; synergistic benefits
  • Zinc - Zinc supports thymic function; combining with Thymalin is highly recommended
  • Vitamin C - Antioxidant immune support; safe and complementary combination
  • Probiotics - Both support immune health through different mechanisms; safe combination

Want the Full Picture?

View the complete Thymalin research profile including mechanism of action, clinical studies, effectiveness timeline, and FAQ.

View Full Thymalin Profile

Medical Disclaimer

Thymalin is an investigational research compound not approved by the FDA for human therapeutic use. This information is for educational purposes only and should not be construed as medical advice. Always consult with a qualified healthcare provider before starting any new supplement or treatment protocol.

Last updated: 2/8/2026