Cosmetic Ingredient
- • Abrasive (124)
- • Absorbent (84)
- • Anticaking (66)
- • Anticorrosive (25)
- • Antifoaming (19)
- • Antimicrobials (291)
- • Antioxidant Ingredient (392)
- • Antiperspirant (20)
- • Antiplaque (48)
- • Anti-seborrheic (38)
- • Anti-sebum (38)
- • Antistatic (457)
- • Astringent (162)
- • Binding Agent (171)
- • Bleaching Agent (53)
- • Buffering (190)
- • Bulking (109)
- • Chelating (122)
- • Cleansing (680)
- • Cosmetic Colorant (212)
- • Cosmetic Preservative (158)
- • Denaturant (45)
- • Deodorant (98)
- • Depilatory (27)
- • Dissolving Agent (297)
- • Emollient (795)
- • Emulsifying Agent (481)
- • Emulsion Stabilising (153)
- • Exfoliating (19)
- • Film Forming (299)
- • Flavouring (72)
- • Foam Boosting (161)
- • Foaming (101)
- • Fragrance Ingredient (732)
- • Gel Forming (19)
- • Hair Conditioning (672)
- • Hair Dyeing (363)
- • Hair Fixing (36)
- • Hair Waving or Straightening (45)
- • Humectant (281)
- • Hydrotrope (92)
- • Keratolytic (20)
- • Light Stabilizer (77)
- • Moisturising Agent (50)
- • Nail Conditioning (42)
- • Occlusive (20)
- • Opacifying (119)
- • Oral Care (123)
- • Oxidising (19)
- • Perfuming (2106)
- • Plasticiser (98)
- • Propellant (19)
- • Reducing (51)
- • Refatting (12)
- • Refreshing (27)
- • Skin Cleansing (387)
- • Skin Conditioning (1747)
- • Skin Humectant (21)
- • Skin Protecting (281)
- • Smoothing (32)
- • Soothing (72)
- • Tonics (155)
- • UV Filter (33)
- • Viscosity Controlling (530)
Chemicals as Skincare Ingredients
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More Information
Moisturizing is a crucial step in our skincare routine. A comprehensive moisturizing system includes components such as humectants, emollients, and occlusives.
The sebum film on the surface of the human skin is a natural occlusive film composed of oils secreted by the skin itself mixed with shed corneocytes. However, daily facial cleansing removes the sebum film, losing its occlusive function. At this point, occlusive agents in cosmetics can form a sealing film on the skin surface to reduce water loss, with their main components being lipids.
Common occlusive agents include:
● Oils and Waxes: Petrolatum, mineral oil, paraffin, squalane
● Silicone oils: Dimethicone, cyclopentasiloxane
● Plant and Animal Fats: Cocoa butter
● Lanolin, Fatty Alcohols: Lanolin alcohol, cetyl alcohol
Frequently Asked Questions
Occlusive ingredients are substances used in skincare formulations to create a protective barrier on the skin’s surface, preventing transepidermal water loss (TEWL) and helping retain moisture. Common examples include petrolatum, dimethicone, lanolin, and mineral oil. These ingredients are essential in moisturizers, especially for individuals with dry or compromised skin barriers.
Occlusives, humectants, and emollients each play distinct roles in skincare:• Occlusives form a physical barrier to lock in moisture.• Humectants (like glycerin or hyaluronic acid) attract water from the environment and deeper skin layers to the surface.• Emollients (such as squalane or fatty acids) smooth and soften the skin by filling gaps between skin flakes.Effective moisturizers often combine all three types for optimal hydration and barrier support.
Not all occlusives are comedogenic. While heavy occlusives like petrolatum may clog pores in acne-prone individuals, lighter, non-comedogenic options such as dimethicone or squalane can provide barrier protection without triggering breakouts. It’s important to choose formulations labeled 'non-comedogenic' and patch-test new products if you have oily or acne-prone skin.
For sensitive skin, dermatologists often recommend hypoallergenic and fragrance-free occlusives like petrolatum (medical-grade), dimethicone, or shea butter. These ingredients help reinforce the skin barrier with minimal risk of irritation. Always look for products that are clinically tested and free from common irritants such as alcohol, dyes, or synthetic fragrances.
Occlusives should be applied as the final step in your skincare routine—after serums, treatments, and moisturizers—to seal in all the previously applied hydration and active ingredients. For enhanced results, some people use the 'slugging' method by applying a thin layer of an occlusive like petrolatum overnight to maximize moisture retention and barrier repair.