Activated Carbon Powder

Benefits of activated charcoal powder for the skin
Activated charcoal is a plant ingredient that is increasingly present in skin care products. Present in many masks and soaps, it brings several benefits to the epidermis.

Activated charcoal to absorb excess sebum
An accumulation of sebum can clog pores, leading to the formation of imperfections such as blackheads and blackheads. By absorbing excess sebum, activated charcoal prevents the appearance of pimples and mattifies oily skin. It brings to the skin a blow of brightness and unifies the complexion.

Activated charcoal to eliminate impurities
Activated charcoal is capable of absorbing toxins and impurities present on the skin's surface. Thus, it is particularly interesting to use a product based on activated charcoal if you live in a polluted environment, to purify and detoxify the skin.

Activated charcoal to gently exfoliate the skin
Activated charcoal has a granular but soft texture that allows for a light mechanical peeling of the skin. It eliminates the dead cells on the surface of the epidermis and stimulates cell renewal.

Benefits of activated charcoal powder for the hair
Hair easily absorbs toxins from pollution, tobacco, etc. Used in the conception of shampoo, charcoal will clean and purify the scalp as well as the hair fiber. It will rid the hair of absorbed toxins and dandruff. Just like on oily skin, charcoal works in the same way to limit the production of sebum on the scalp.

Activated carbon, or activated charcoal, is a highly porous carbon form created by heating carbon-rich materials like wood, peat, coconut shells, or sawdust in the presence of gas (usually steam or air). This process purges impurities and generates a porous structure with a vast surface area, endowing activated carbon with exceptional adsorption qualities. Adsorption involves molecules or atoms adhering to a solid or liquid surface, occurring primarily through physical and chemical adsorption in activated carbon.

Physical adsorption (physisorption)
Weak, non-covalent interactions between molecules and the adsorbent's surface, known as van der Waals forces, drive this primary adsorption mechanism. The extensive surface area and porous structure of activated carbon render it highly effective for physical adsorption, attracting and holding molecules without forming strong chemical bonds.

Chemical adsorption (chemisorption)
This adsorption type involves chemical bond formation between the adsorbate and activated carbon surface. Although less common than physical adsorption, chemisorption can occur when activated carbon is modified or treated with functional groups (e.g., carboxylic acids or hydroxyl groups), enabling specific molecular adsorption through chemical reactions instead of van der Waals forces.

Pore structure and surface area
The efficacy of activated carbon in adsorption heavily relies on its pore structure and surface area. Pore structure comprises micropores (smaller than 2 nm), mesopores (2-50 nm), and macropores (larger than 50 nm). A high proportion of micropores in activated carbon contributes significantly to its surface area and adsorption capacity. A larger surface area allows for more molecules to be adsorbed onto the activated carbon.

The adsorption capacity of activated carbon can be influenced by several factors, such as
• Temperature: Lower temperatures generally enhance adsorption, as adsorbate molecules have reduced kinetic energy, increasing their likelihood of adhering to the activated carbon surface.
• PH: Solution pH can affect adsorption. Acidic conditions can promote heavy metal adsorption, while basic conditions can favor organic compound adsorption.
• Adsorbate concentration: The solution's adsorbate concentration can influence activated carbon's adsorption capacity. Greater adsorbate concentrations often result in higher adsorption.
• Particle size: Smaller activated carbon particles tend to have a higher adsorption capacity due to their increased surface area per unit mass.
• Activated carbon type and structure: Specific properties of activated carbon, such as pore size distribution, surface chemistry, and activation degree, can also affect its adsorption capacity. Different activated carbons are better suited to adsorbing specific contaminants.