Auxins are plant hormones. The most important auxin produced by plants is indole-3-acetic acid (IAA). 1  development of the embryo. 2  leaf formation. 3  phototropism. 4  gravitropism. 5  apical dominance. 6  fruit development. 7  abscission.8  root initiation and development.he most important auxin produced by plants is indole-3-acetic acid (IAA). 1  development of the embryo. 2  leaf formation. 3  phototropism. 4  gravitropism. 5  apical dominance. 6  fruit development. 7  abscission. 8  root initiation and development.
Best Answer: A toner cleans up your face thoroughly, by removing any dirt, dead skin-cells, or other mess you might have on your face. Using it as a cleanser is much more gentle on the skin than using face-soap. It also tightens & helps firm your skin, giving it a healthy look.
Call them toners, astringents, or clarifiers, every skin care line has them. They're especially popular for those with oily and acne-prone skin. But will using a toner clear up your acne? What is a Toner? First, let's clarify what a toner is and why it's used. Toners are liquid solutions that are applied to the skin with a cotton ball or pad. You use them just after cleansing and before moisturizing. Toners are said to remove traces of dirt, makeup, cleanser residue and excess oil.