Absorber

Effective sebum control technology is an increasingly important tool for skincare and makeup product formulators. In makeup preparations, sebum absorbed by colorant materials can result in undesirable shade changes.

In addition, excessive sebum production is a contributing factor in acne. It has been reported that as many as 50 percent of women have oily or combination skin, with more experiencing spot or acne-related issues at least occasionally.

Cosmetic formulators' current sebum control technologies include highly absorbers, organic polymer particles, amorphous silica particles, hollow silica shells, and porous silica spheres. Several silicate absorbents offer solutions for controlling excess sebum in cosmetic skincare and dermatological anti-acne preparations and for controlling facial shine and oil break-through in facial makeup preparations.

Microparticle absorbents can be divided into two major classes: inorganic and polymeric materials. Both types of material rely on small porous particles that can accommodate substances like sebum or dirt. Cross-linked methacrylate polymer particles provide extremely high invitro oil absorption by capillary action and low surface energy. Polymeric absorbents based on methacrylate co-polymers function by entrapping skin lipids. Some natural polymers, like different types of cellulose, also act in a similar way.

Most inorganic absorbents are silica forms with varying degrees of surface area and porosity. Precisely engineering silica salts like calcium silicate can produce an inorganic oil control alternative with intermediate oil absorption yet superior clinical sebum absorption.

Allyl Methacrylates Crosspolymer is a synthetic porous polymer derived from the suspension polymerization method, similar to that used to make latex paints. It forms spherical particles with a median size of about 40 μm.

Boron Nitride (BN) is a chemically stable compound of nitrogen and boron. It has become a popular cosmetic ingredient because of its unique combination of silky feel, skin adhesion, and processability.

Calcium silicate is an inorganic ingredient with limited use in cosmetics applications. Various types of calcium silicates differ significantly in morphology, allowing both porous and non-porous types to be produced synthetically.

Magnesium Aluminum Silicate (MAS) is a white, highly purified mineral derived from smectite clays. It serves as stabilizing, suspending, and emulsifying agent for cosmetic formulations.
Maltodextrin is a generalized name for polysaccharides composed of short-to-medium long chains of glucose units (from 3 to 20 units, linked primarily by α-1–4 bonds) produced from starch.

Microcrystalline cellulose is purified, isolated colloidal crystalline cellulose derived from fibrous plants. It is a white, free-flowing powder that is odorless and insoluble in water.