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Melatonin is a hormone, released primarily by the pineal gland, that regulates the sleep–wake cycle. 3D ball-and-stick model, white background

Microcrystalline wax with chemical formula on white laboratory table.

3d rendering of benzene molecules conjugated gold (Au) nanoparticles (NPs) on the black background

Molecular model of Adenosine triphosphate, or Adenosine-5'-triphosphate (ATP)

Dopamine ( DA) hormone molecule. Molecular model. 3D rendering. 3D illustration

3d Rendering Molecular Structure,Ozone,Hydrogen and oxygen

C6H6, benzol (benzene) molecule. Chemical structure model: Ball and Stick. 3D illustration.

3d render of molecular structure of sulfuric acid isolated over white background Atoms are represented as spheres with color and chemical symbol coding: hydrogen(H) - blue, oxygen(O) - green, sulfur(S) - orange.

Chemical formula of Testosterone on a blackboard

Cortisol is a steroid hormone, in the glucocorticoid class of hormones. When used as a medication, it is known as hydrocortisone. It is produced in many animals, mainly by the zona fasciculata of the adrenal cortex in the adrenal gland.

Glasgow, Scotland - Vehicles on the street passing a large Arnold Clark car dealership, with second hand and new cars on sale.

Copper(II) sulfate with molecular structure. Chemical ingredient used in medical and public health issues.

Folic acid, folate molecule. It is known as vitamin B9. Molecular model. 3D rendering. Illustration

A molecular model of Bisphenol A or BPA. It is a common building block in the production of many epoxy resins and plastics including polycarbonate plastic. As such it is present in a huge range of food packaging and household products. There are now concerns about its health effects, particularly its effect on children, infants and fetuses. Isolated on white.

Melatonin molecule formula and 3D diagram. Digital illustration, 3D render

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