G.EgebjergT.et al (2021)
Larger trials would provide more precise effect estimates and detect smaller differences between groups
It has persisted because the ingredients are grounded in basic nutritional science, the delivery method makes physiological sense, and for the right person at the right time it genuinely seems to help.
Arma Peptides publishes batch-specific COAs documenting both, a standard absent from most UK peptide retailers

Water/Aqua/Eau, Tetrahexyldecyl Ascorbate (vitamin C/antioxidant), Dimethicone (silicone/emollient), Glycerin (humectant), C912 Alkane (solvent), Ascorbyl Glucoside (vitamin C/antioxidant), Silica (texture enhancer), Pyrus Malus (Apple) Fruit Extract (plant extracts/antioxidant), Hydrogenated Lecithin (emollient), Polyglyceryl6 Polyricinoleate (emulsifier/suspending/dispersing agent), Acrylates/C1030 Alkyl Acrylate Crosspolymer (texture enhancer), Xanthan Gum (texture enhancer), Glutathione (antioxidant), Ergothioneine (antioxidant), Oryza Sativa (Rice) Bran Extract (plant extracts/antioxidant), Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer (suspending/dispersing agent), Cetyl Alcohol (emollient), Caprylyl Glycol (humectant), Lysine Carboxymethyl Cysteinate (antioxidant), CocoCaprylate/Caprate (emollient), Tocopherol (vitamin E/antioxidant), Sodium Citrate (pH adjuster), Sodium Phytate (chelating agent), Hexylene Glycol (humectant), Ethylhexylglycerin (humectant), Helianthus Annuus (Sunflower) Extract (plant extracts/antioxidant), Urea (humectant), Mannitol (humectant), Caprylic/Capric Triglyceride (emollient), Sodium PCA (humectant), Rosmarinus Officinalis (Rosemary) Leaf Extract (plant extracts/antioxidant), Polysorbate 60 (emulsifier), Sorbitan Isostearate (emulsifier), Trehalose (humectant), Ascorbic Acid (vitamin C/antioxidant), Glucose (humectant), Vanilla Planifolia Fruit Extract (plant extracts/antioxidant), Polyquaternium51 (filmforming agent), Triacetin (solvent), Sodium Hyaluronate (humectant), Phenoxyethanol (preservative)

Endometrial growth and uterine blood flow: a pilot study for improving endometrial thickness in the patients with a thin endometrium