Testagen

Testagen (KEDG, Lys-Glu-Asp-Gly) is a synthetic tetrapeptide bioregulator developed by Russian scientist Vladimir Khavinson and his team at the St. Petersburg Institute of Bioregulation and Gerontology. Derived from amino acid sequences found in anterior pituitary gland extracts, Testagen is researched for its potential effects on thyroid-stimulating hormone (TSH) release, thyroid function, and downstream testosterone regulation. As part of the Khavinson peptide family, it is proposed to cross cell and nuclear membranes to directly interact with DNA and modulate gene expression in target tissues.

• Thyroid Function Optimization
• TSH Stimulation
• Testosterone Support

Direct systemic absorption, precise dosing control, bypasses GI degradation, supports anterior pituitary function, potential thyroid and testosterone optimization through TSH modulation.

Testagen (KEDG) is proposed to cross both cell and nuclear membranes to interact directly with DNA in anterior pituitary cells. This may stimulate TSH release, subsequently influencing T3/T4 thyroid hormone production. Improved thyroid function is correlated with normalized testosterone levels, suggesting a potential indirect mechanism for testosterone support.

Peak plasma concentration: 15 min. Elimination half-life: 30 min. Largely cleared by: ~2.5 hrs.

Research protocols from published literature — not dosing recommendations.

• Epitalon — Synergistic: Both are Khavinson bioregulators - Epitalon targets pineal function while Testagen targets anterior pituitary. Commonly used together in Russian anti-aging protocols.
• Pinealon — Synergistic: Complementary bioregulators - Pinealon supports pineal/brain function while Testagen supports pituitary-gonadal axis.
• Thymalin — Compatible: Both are Khavinson bioregulators with different targets (thymus vs pituitary). No known negative interactions.
• CJC-1295 — Monitor Combination: Both affect pituitary function - CJC-1295 stimulates GH release while Testagen may affect TSH. Monitor for hormonal changes.
• Ipamorelin — Compatible: Different pituitary targets - Ipamorelin stimulates GH via ghrelin receptor, Testagen targets TSH pathways.
• BPC-157 — Compatible: No direct interaction - work through completely different mechanisms (tissue repair vs endocrine regulation).
• Thyroid Medications — Monitor Combination: Testagen may affect TSH and thyroid hormone levels - monitor thyroid function closely if on thyroid medications.
• TRT/Testosterone — Monitor Combination: Both affect testosterone levels through different mechanisms. Monitor hormone levels if combining.

Supplies:

• Testagen lyophilized powder (typically 20mg vial)
• Bacteriostatic water (BAC water)
• Insulin syringes (30 or 50 unit for precision)
• Alcohol swabs
• Sterile work surface

1. 1Add 3.0mL BAC water to 20mg vial = 6.67mg/mL (6670mcg/mL)
2. 2At this concentration: 1 unit = ~67mcg on U-100 syringe
3. 3Inject BAC water slowly down vial wall, avoid direct contact with powder
4. 4Gently swirl or roll until dissolved - do NOT shake
5. 5Allow to sit 2-3 minutes if any cloudiness, swirl again until clear
6. 6For 100mcg dose: draw 1.5 units; for 200mcg: 3 units; for 300mcg: 4.5 units
7. 7Store reconstituted solution refrigerated at 2-8°C

Weeks 1-2: Establishing baseline, minimal noticeable effects. Weeks 3-4: Potential subtle improvements in energy and mood. Weeks 5-8: Possible thyroid function optimization, improved metabolic rate. Weeks 8-12: Full effects on thyroid-testosterone axis may manifest. Effects are subtle and cumulative - this is a bioregulator, not a hormone. Consider hormone panel testing before and after cycle for objective assessment.

No human clinical trials exist - all guidance from preclinical research. Contraindicated in individuals with thyroid cancer or hyperthyroidism. Monitor thyroid function if on thyroid medications. Start with lower dose to assess individual response. Rotate injection sites systematically to prevent tissue damage. Use fine gauge needle (23-31G) for comfort. Not recommended during pregnancy or breastfeeding. Consult healthcare provider before use, especially with existing endocrine conditions.

No human clinical trials exist - all guidance from preclinical research. Contraindicated in individuals with thyroid cancer or hyperthyroidism. Monitor thyroid function if on thyroid medications. Start with lower dose to assess individual response. Rotate injection sites systematically to prevent tissue damage. Use fine gauge needle (23-31G) for comfort. Not recommended during pregnancy or breastfeeding. Consult healthcare provider before use, especially with existing endocrine conditions.

Testagen should be stored at Lyophilized -20°C, Reconstituted 2-8°C.