Quick Comparison

CrystagenPinealamin
Half-LifeApproximately 30 minutes (acute pharmacology); proposed gene-expression effects outlast plasma exposureVariable across the peptide mixture — minutes to hours; effects attributed to gene expression changes
Typical DosageOral (capsule): 100-200 mg once daily for 10-30 day cycles, repeated 2-3 times per year. Subcutaneous injection: 1-5 mg per dose, alternate days for 10-20 day cycles. Standard Khavinson cycling protocol.Oral (enteric-coated capsule): 10 mg once or twice daily for 10-30 day cycles, often combined with bedtime dosing for sleep applications. Cycles typically repeated 2-3 times per year. Standard Khavinson cycling rather than continuous dosing.
AdministrationOral capsule or subcutaneous injection (cycled)Oral enteric-coated capsule (cycled)
Research Papers1 papers0 papers
Categories

Mechanism of Action

Crystagen

Crystagen is a short Khavinson tripeptide (Glu-Asp-Pro) positioned as the immune and thymus-targeted bioregulator within the wider Khavinson peptide family. The proposed mechanism follows the standard family framework: short peptides interact with gene promoter sequences in thymic and lymphocyte cell nuclei, modulating expression of genes involved in T cell maturation, cytokine production, and broader immune regulation.

Proposed effects include support for thymic function — particularly relevant given the well-documented age-related thymic involution that contributes to immunosenescence in older adults — alongside modulation of lymphocyte chromatin organisation and immune cell maturation pathways. Russian research has reported crystagen-induced improvements in lymphocyte counts, T helper cell function, and clinical recovery from infections in elderly populations and in patients recovering from immunosuppressive treatments. The peptide is often used alongside thymalin (a related thymic peptide preparation also in this database) as part of broader Khavinson immune-support protocols.

As with the rest of the Khavinson family, the efficacy evidence base sits within Russian gerontology and immunology research with limited independent Western validation. Crystagen is not validated as a treatment for primary immunodeficiency, HIV-related immune dysfunction, or other formally diagnosed immune conditions, and should not displace evidence-based immune therapy. The brief plasma half-life (around 30 minutes) reflects the proposed model of transient signalling triggering longer-lasting transcriptional changes in immune cell populations.

Pinealamin

Pinealamin is a low-molecular-weight peptide extract derived from the pineal glands of young cattle, processed to isolate short peptides (typically under 10 kDa) with proposed bioregulatory activity on pineal gland function. Unlike defined Khavinson tripeptides such as pinealon (Glu-Asp-Arg), pinealamin is a complex mixture of multiple peptide species, and its biological activity is attributed to the combined effect of these peptides rather than a single active component.

The proposed mechanism follows the Khavinson bioregulator framework: tissue-derived short peptides preferentially target the same tissue type from which they were extracted, binding to gene promoter regions and modulating expression of genes involved in pineal-specific functions. For pinealamin, this is hypothesised to include regulation of melatonin biosynthesis enzymes (notably AANAT and HIOMT), serotonin-to-melatonin conversion pathways, and the broader hypothalamic-pituitary-pineal axis that governs circadian rhythm.

Clinical positioning is primarily for age-related decline in melatonin secretion and associated sleep disorders in older adults — Russian observational studies have reported improvements in subjective sleep quality and measured melatonin output following pinealamin courses in middle-aged and elderly subjects. As with all Khavinson cytamins, the efficacy and mechanism evidence base sits almost entirely within Russian research traditions and has not been replicated in Western randomised controlled trials. The animal-derived sourcing also raises quality and safety considerations that vary significantly between suppliers, and pharmacopoeial standards for pinealamin do not exist outside Russian regulatory frameworks.

Risks & Safety

Crystagen

Common

generally reported as well tolerated.

Serious

very limited Western clinical data; theoretical concern with use in autoimmune disease (immune-modulating peptides may unpredictably affect autoimmune activity).

Rare

allergic reactions. Should not replace evidence-based immune therapy in serious immunodeficiency.

Pinealamin

Common

generally well tolerated in Russian observational studies; occasional reports of mild GI discomfort.

Serious

animal-derived raw material introduces theoretical infectious risk (manufacturing controls vary by source); limited Western clinical safety data.

Rare

allergic reactions to bovine peptide content. Quality control varies significantly between suppliers.

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