| A | B |
| acid | ph below 7.0 / 1-7 |
| alkalis | ph above 7.0 / 7-14 |
| emulsion | an unstable physical mixture of two or more immicible substance |
| oil in water | oil droplet dispersed in water with the aid of emulsifying agent |
| water in oil | droplet of water dispersed in an oil |
| surfactant | suface active agent, reduce surface tension between the skin and the product to increase spreadability, allow oil and water to mix or emulsify |
| ph scale | measure of the acidity and alkalinity |
| ph | abbreviation used for potential hydrogen relative degree acidity and alkalinity |
| soulte | dissolves the solute to form a solution |
| solution | uniform mixture of two or more mutually miscible substance |
| solvent | a substance that dissolves another substance to form a solution |
| state of matter | three different physical form of matter solid liquid and gas |
| water | 75 of earth surface |
| aromatherapy | ancient healing practice using essential oils and atom from plants to treat the body , mind and spirit |
| chelating agent | cosmetic to improve the efficiency of the preservative |
| chemical exfoliation | dissolves dead skin cell and the intercellular matrix or glue that hold them together |
| clay mask | oil absorbing cleansing masks that draw impurities to the surface of the skin |
| cleanser | soaps and detergent that clean the skin |
| exfoliant | mechanical and chemical product or processes used to exfoliate the skin |
| exfoliation | peeling or sloughing of the outer layer of skin |
| fragrance | give product their scent |
| freshener | lowest alcohol content |
| toner | higher alcohol content. liquid designed to tone and tighten the skin surface |
| with hazel | bark of hamamelis shrub can be a soothing agent of higher concentration an astringent |
| astringent | highest alcohol content used for acne prone skin |
| mechanical exfoliation | physically rubbing dead cell off of the skin |
| emollient | fatty material " derived from oils or fat" used to lubricate and mositurize the skin |
| oil base moisturizer | emollient and are heavier and occlusive designed to protect the surface and trap water under the cream |
| water base moisturizer | are lighter emollient for combination to oily skin and absorbed quickly |
| cleansing gel | foaming cleanser with a neutral or slightly acidic ph |
| cleansing lotion | water based emulsion for normal to combination |
| cleansing cream | water in oil emulsion used primarily to dissolve makeup and dirt |
| sunscreen | increasing the spf increase the protection |
| serum | concentrated ingredient that target specific skin condition |
| maasage cream | massage cream, lotion or oil have a variety of bases and ingredient |
| treatment cream | nourishing cream are designed to moisturize and condition the skin especially during sleep , when normal tissue repair is taking place |
| neutral | 7 |