Lactic Acid, L- (L-lactic acid, L-lactate) is the levorotatory isomer of lactic acid, the biologically active isoform in humans. Lactic acid or lactate is produced during fermentation from pyruvate by lactate dehydrogenase. Lactate dehydrogenase is isomer-specific so that production and metabolism of D-lactate require D-LDH and L-lactate requires L-LDH. Mammalian cells only contain L-LDH so that in humans the lactate produced is almost exclusively L-lactate. Carbohydrate-fermenting bacterial species (e.g. lactobacillus spp) have by contrast both enzymes and therefore the capacity to produce both D-lactate and L-lactate. L-lactic acid is the primary agonist of hydroxycarboxylic acid receptor 1 (HCA1), which is a Gi/o-coupled G protein-coupled receptor (GPCR). Poly-L-lactic acid is an absorbable, semi-permanent, injectable implant that can be used to restore volume and stimulate collagen formation gradually. It is FDA-approved for the correction of facial fat loss associated with antiretroviral therapy-induced lipoatrophy in HIV patients. It is FDA-approved for use in immunocompetent people for the correction of nasolabial fold deficiencies and other facial wrinkles. It has been used off-label to enhance the cheeks, hands, neck, thighs, gluteal enhancement and chest wall deformities, such as pectus excavatum or thoracic deformities secondary to surgical procedures.

MYRISTYL LACTATE is an inactive component of EIGHT HOUR CREAM LIP PROTECTANT (petrolatum stick), which is used to protect lips from the drying effects of wind and cold weather. Sunscreen ingredients (SPF 15) guard against the damaging effects of sun exposure.

LAURYL LACTATE is an inactive component of 5 DAY (aluminum zirconium tetrachlorohydrex glycine liquid) used to reduce underarm perspiration.

Bamipine (trade name Soventol) is a sedating antihistamine with pronounced sedative effects. Bamipine is a pharmaceutical drug acting as an H1 antihistamine with anticholinergic properties. It is used as an antipruritic ointment. Bamipine hydrochloride has been given by mouth. Bamipine, bamipine lactate, and bamipine salicylate have all been applied topically.

Vortioxetine DL-lactate is a lactate salt of vortioxetine and its chemical name is 1-[2-(2,4-dimethylphenylsulfanyl)-phenyl]-piperazine (RS)-2-hydroxypropanoate. Vortioxetine DL-lactate is manufactured from the milled Vortioxetine hydrobromide via the nonisolated free base. One site is involved in the manufacture of the lactate salt of Vortioxetine. Vortioxetine is an antidepressant for the treatment of major depressive disorder. Unlike the film-coated tablets where a hydrobromide salt of the active substance is used, the oral drops formulation contains vortioxetine DL-lactate as the active substance which shows higher solubility in polar solvents. Vortioxetine is a novel multimodal antidepressant that acts as a serotonin (5-HT)3, 5-HT7, and 5-HT1D receptor antagonist; 5-HT1B receptor partial agonist; 5-HT1A receptor agonist; and 5-HT transporter inhibitor in vitro.