# Peptide Guide: Cytomaxes vs Cytogens **URL:** https://www.gavau.lt/en/pages/peptidu-vadovas --- What peptide bioregulators are Peptides are short protein chains made up of 2–50 amino acids. The peptide bioregulators in the NPCRIZ range are especially short: 2–4 amino acids. This size matters, because it allows the peptides to enter the cell and act at the level of DNA expression. Cytomaxes (natural) Origin: extracted from the tissues of young animals (usually calves) that correspond to human organs. Composition: a peptide complex (usually a combination of at least 3–5 different di-/tri-/tetra-peptides). Example: Libidon — prostate peptides from calf prostate tissue. 21 products in the range — a peptide complex of its own for each organ. Cytogens (synthetic) Origin: chemically synthesised in a laboratory. Composition: most often a single short peptide (a di- or tripeptide) at a high purity concentration. Example: Cartalax — the synthetic cartilage dipeptide AED. 6 products in the range — the main organ systems. Suitable for vegans — no components of animal origin. Which format suits me? Case Recommended format Trying peptides for the first time Cytomaxes (the classic start) You avoid products of animal origin Cytogens Digestive discomfort Sublingual drops General vitality support GPL complexes Support for a specific function (brain, joints) Prime Peptide Safety and contraindications NPCRIZ peptide bioregulators are sold as food supplements and are taken in accordance with the recommended daily dose. The main contraindications: Individual intolerance of peptides Pregnancy and breastfeeding (limited studies) Children under 18 (limited studies) Severe autoimmune conditions (consult your doctor) Read more about peptide forms (capsules and sublingual drops) and the scientific basis of the NPCRIZ institute. Food supplement. A food supplement is not a substitute for medicine and is not intended to diagnose, treat or prevent any disease. Do not exceed the recommended daily dose. A food supplement should not be used as a substitute for a varied and balanced diet. Keep out of the reach of children. If pregnant, breastfeeding or taking medication, consult your doctor or pharmacist. --- *Markdown version of https://www.gavau.lt/en/pages/peptidu-vadovas.*