Androgenic alopecia follows a pattern, thinning at the crown and temples in men, diffuse thinning across the top of the scalp in women, and it does not resolve on its own the way telogen effluvium does
Rare side effects may include: Mild injection site irritation Headache Nausea Temporary flushing Excess B12 is typically excreted in urine

Purified water, glycerin, butylene glycol, niacinamide, 1,2-hexanediol, caprylic/capric triglyceride, trehalose, glyceryl caprylate, C12-14 pareth-12, arginine, acrylates/C10-30 alkyl acrylate crosspolymer, hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, ethylhexylglycerin, allantoin, disodium EDTA, sorbitan isostearate, glutathione (10 ppm), hydrogenated lecithin, ladys mantle extract, malva sylvestris (mallow) flower/leaf/stem extract, polyglyceryl-10 stearate, lemon balm leaf extract, peppermint leaf extract, veronica officinalis flower/leaf/stem extract, achillea millefolium extract, primula veris extract, panthenol, sodium hyaluronate, equisetum arvense extract, sodium ascorbyl phosphate, lycopodium clavatum extract, citric acid, hydroxypropyltrimonium hyaluronate, copper tripeptide-1, pyridoxine, folic acid, palmitoyl pentapeptide-4, acetyl hexapeptide-8, biotin, sodium acetylated hyaluronate, hydrolyzed hyaluronic acid, palmitoyl tripeptide-1, palmitoyl tetrapeptide-7, hyaluronic acid, tocopherol, cyanocobalamin, sodium hyaluronate crosspolymer, hydrolyzed sodium hyaluronate, potassium hyaluronate, thiamine HCl, beta-carotene, riboflavin, linoleic acid, fragrance

Evidence of cancer-inhibiting effects of selenium has provided a strong rationale for investigating potential associations between selenium intake and cancer risk in humans
Estrogen is involved in cardiovascular health, osteogenesis and neurological functions