Exfoliation
Wound
Healing
Cells
Ingredients
Hormones
100

This exfoliation method includes scrubs, brushes, and microdermabrasion.

What is physical exfoliation?

100

This is the first wound-healing phase where platelets gather to form a clot and stop bleeding.

What is the hemostasis phase?

100

This organelle is known as the “powerhouse” of the cell.

What is the mitochondria?

100

These ingredients reduce transepidermal water loss (TEWL) by creating a protective barrier on the skin.

What are occlusives?

100

Hormones are often referred to by this term.

What are chemical messengers?

200

This AHA is derived from sugar cane and has the smallest molecular weight.

What is glycolic acid?

200

This wound-healing phase rebuilds tissue through epithelialization, wound contraction, and cell proliferation.

What is the proliferative phase?

200

These specialized cells transmit electrical impulses throughout the body.

What are neurons?

200

Glycerin, aloe vera, and hyaluronic acid are examples of this type of ingredient.

What are humectants?

200

This endocrine gland regulates metabolism.

What is the thyroid gland?

300

This skin condition occurs when extra melanin is produced in response to injury or inflammation.

What is post-inflammatory hyperpigmentation (PIH)?

300

This type of scar grows beyond the borders of the original wound and forms thick, irregular scar tissue.

What is a keloid scar?

300

This structure surrounds the cell, separates internal and external environments, and is composed of a lipid bilayer.

What is the cell membrane?

300

This ingredient is one of the most common acne treatments and works by decreasing inflammation and preventing bacterial growth.

What is benzoyl peroxide?

300

This hormone produced by the pineal gland helps regulate sleep cycles and circadian rhythms.

What is melatonin?

400

This AHA is a tyrosinase inhibitor, beneficial for dry skin and hyperpigmentation, and may be derived from sour milk.

What is lactic acid?

400

This process restores the epithelial surface during the proliferative phase of wound healing.

What is epithelialization?

400

This organelle releases enzymes that destroy the cell membrane during apoptosis.

What are lysosomes?

400

This delivery system improves ingredient stability and longevity while helping actives reach targeted skin layers.

What is encapsulation?

400

This endocrine gland links the nervous system to the endocrine system through neurohormone secretion.

What is the hypothalamus?

500

This medium-depth peel is a blend of salicylic acid, resorcinol, and lactic acid.

What is Jessner peel?

500

This type of burn penetrates through all layers of the skin and extends into muscle and bone.

What is a fourth-degree burn?

500

This final stage of the cell cycle divides the cytoplasm into two separate daughter cells.

What is cytokinesis?

500

This ingredient treats hyperpigmentation by inhibiting the conversion of tyrosinase to melanin.

What is hydroquinone?

500

This hormone increases heart rate, dilates pupils, and expands bronchi during stressful situations.

What is adrenaline?

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