Nioxin Scalp Relief Scalp Soothing Serum

BHT, or butylated hydroxytoluene, is a synthetic antioxidant widely used in cosmetics, skincare products, and food preservation. This oil-soluble compound effectively prevents oxidation, extending the shelf life of formulations by protecting against rancidity and color changes. In skincare, BHT acts as a free radical scavenger, potentially offering some protection against environmental stressors that contribute to premature aging.

Typically used in concentrations ranging from 0.01% to 0.1%, BHT is often combined with other antioxidants like BHA or vitamin E for enhanced efficacy. Its stability across a wide pH range makes it versatile for various formulations, including creams, lotions, and oils. BHT's ability to maintain product integrity helps preserve the efficacy of other active ingredients in the formulation.

While generally recognized as safe by regulatory bodies, BHT has faced scrutiny due to concerns about potential endocrine disruption and skin sensitization in some individuals. As a result, many formulators are exploring natural alternatives. When used within recommended limits, BHT remains an effective preservative and antioxidant in skincare, contributing to product stability and potentially offering some protective benefits to the skin.

Glycerin, also known as glycerol, is a versatile and widely used humectant in skincare formulations. This colorless, odorless, viscous liquid is derived from both natural and synthetic sources, including vegetable oils and petrochemicals. As a hygroscopic substance, glycerin attracts and retains moisture, making it highly effective in hydrating and moisturizing the skin.

In skincare products, glycerin typically comprises 0.5% to 5% of the formulation. It functions by drawing water from the environment and deeper skin layers to the surface, enhancing skin hydration and improving barrier function. This moisture-binding property helps to reduce transepidermal water loss, leading to smoother, more supple skin.

Glycerin's low molecular weight allows it to penetrate the stratum corneum, providing hydration to deeper skin layers. It also exhibits emollient properties, helping to soften and smooth the skin's surface. Additionally, glycerin has been shown to enhance the penetration of other active ingredients in skincare formulations.

While generally well-tolerated, high concentrations of glycerin can potentially cause a tacky feel on the skin or draw out too much moisture in low-humidity environments. Therefore, it is often combined with other moisturizing agents for optimal efficacy and skin feel.

Glycerin, also known as glycerol, is a versatile and widely used humectant in skincare formulations. This colorless, odorless, viscous liquid is derived from both natural and synthetic sources, including vegetable oils and petrochemicals. As a hygroscopic substance, glycerin attracts and retains moisture, making it highly effective in hydrating and moisturizing the skin.

In skincare products, glycerin typically comprises 0.5% to 5% of the formulation. It functions by drawing water from the environment and deeper skin layers to the surface, enhancing skin hydration and improving barrier function. This moisture-binding property helps to reduce transepidermal water loss, leading to smoother, more supple skin.

Glycerin's low molecular weight allows it to penetrate the stratum corneum, providing hydration to deeper skin layers. It also exhibits emollient properties, helping to soften and smooth the skin's surface. Additionally, glycerin has been shown to enhance the penetration of other active ingredients in skincare formulations.

While generally well-tolerated, high concentrations of glycerin can potentially cause a tacky feel on the skin or draw out too much moisture in low-humidity environments. Therefore, it is often combined with other moisturizing agents for optimal efficacy and skin feel.

Niacinamide, also known as nicotinamide or vitamin B3, is a versatile and well-researched skincare ingredient with numerous benefits for various skin types and concerns. This water-soluble vitamin plays a crucial role in cellular energy production and repair processes within the skin.

Niacinamide is renowned for its ability to improve skin barrier function by increasing ceramide production, which helps retain moisture and protect against environmental stressors. It has been shown to regulate sebum production, making it beneficial for those with oily or acne-prone skin. The ingredient also possesses anti-inflammatory properties, helping to soothe irritated skin and reduce redness associated with conditions like rosacea.

Furthermore, niacinamide has demonstrated efficacy in improving skin tone and texture by inhibiting melanosome transfer to keratinocytes, thus reducing the appearance of hyperpigmentation and dark spots. It can also stimulate collagen production, contributing to improved skin elasticity and reduction of fine lines.

Typically used in concentrations between 2% and 5%, niacinamide is well-tolerated by most skin types and can be easily incorporated into various skincare formulations, including serums, moisturizers, and toners.

Niacinamide, also known as nicotinamide or vitamin B3, is a versatile and well-researched skincare ingredient with numerous benefits for various skin types and concerns. This water-soluble vitamin plays a crucial role in cellular energy production and repair processes within the skin.

Niacinamide is renowned for its ability to improve skin barrier function by increasing ceramide production, which helps retain moisture and protect against environmental stressors. It has been shown to regulate sebum production, making it beneficial for those with oily or acne-prone skin. The ingredient also possesses anti-inflammatory properties, helping to soothe irritated skin and reduce redness associated with conditions like rosacea.

Furthermore, niacinamide has demonstrated efficacy in improving skin tone and texture by inhibiting melanosome transfer to keratinocytes, thus reducing the appearance of hyperpigmentation and dark spots. It can also stimulate collagen production, contributing to improved skin elasticity and reduction of fine lines.

Typically used in concentrations between 2% and 5%, niacinamide is well-tolerated by most skin types and can be easily incorporated into various skincare formulations, including serums, moisturizers, and toners.

PEG-23M, also known as Polyethylene Glycol 23M, is a high molecular weight polymer used extensively in skincare and cosmetic formulations. This synthetic compound belongs to the family of polyethylene glycols (PEGs) and is characterized by its ability to form viscous aqueous solutions at relatively low concentrations.

In skincare products, PEG-23M functions primarily as a thickening agent and texture enhancer. It helps stabilize emulsions, improving the overall consistency and feel of creams, lotions, and gels. This ingredient also acts as a humectant, drawing moisture to the skin's surface and helping to maintain hydration.

PEG-23M is particularly valued for its ability to create smooth, non-greasy textures in formulations. It can enhance the spreadability of products and contribute to a luxurious skin feel upon application. Additionally, this polymer can aid in the even distribution of other active ingredients throughout a product.

While generally considered safe for topical use, individuals with sensitive skin should perform patch tests before widespread application. PEG-23M is water-soluble and easily rinsed off, making it suitable for both leave-on and rinse-off products in skincare routines.

Phenoxyethanol is a widely used preservative in cosmetic and personal care products. This synthetic compound, derived from phenol and ethylene oxide, plays a crucial role in preventing microbial growth and extending product shelf life. With its chemical formula C8H10O2, phenoxyethanol appears as a colorless, oily liquid with a faint rose-like odor.

Effective against a broad spectrum of bacteria, yeasts, and molds, phenoxyethanol is particularly valuable in water-based formulations. It functions optimally at pH levels between 3 and 8.5, making it compatible with a wide range of skincare and cosmetic products. Typically used at concentrations of 0.5% to 1%, phenoxyethanol is considered safe for most individuals when used as directed.

While phenoxyethanol offers excellent preservation properties, it is often combined with other preservatives for enhanced efficacy. Its stability in the presence of sunlight and compatibility with other cosmetic ingredients contribute to its popularity among formulators. However, some individuals may experience skin irritation or allergic reactions, particularly at higher concentrations. Regulatory bodies, including the FDA and EU Cosmetics Regulation, have approved phenoxyethanol for use in cosmetics within specified limits, reflecting its established safety profile when used appropriately.

Silica, also known as silicon dioxide, is a naturally occurring mineral compound found abundantly in the earth's crust. In skincare formulations, it serves multiple purposes due to its unique physical and chemical properties. This versatile ingredient functions primarily as an absorbent, anti-caking agent, and texture enhancer.

Silica particles are highly porous, allowing them to effectively absorb excess oils and sebum from the skin's surface. This oil-absorbing quality makes silica particularly beneficial in mattifying products and those designed for oily or combination skin types. Additionally, silica acts as a thickening agent, improving the texture and stability of various cosmetic formulations.

In powdered makeup products, silica helps prevent clumping and ensures smooth application. Its light-diffusing properties can also contribute to a soft-focus effect, minimizing the appearance of fine lines and pores. Silica is generally considered safe for topical use and is non-comedogenic, making it suitable for a wide range of skin types.

While silica offers numerous benefits in skincare, it's important to note that inhalation of fine silica particles should be avoided, particularly in loose powder formulations.

Steareth-20 is a versatile emulsifier and surfactant widely used in cosmetic and personal care formulations. This synthetic ingredient is derived from stearyl alcohol and ethylene oxide, resulting in a nonionic compound with excellent solubilizing properties. Steareth-20 has an HLB (Hydrophilic-Lipophilic Balance) value of approximately 15.3, making it particularly effective in oil-in-water emulsions.

In skincare products, Steareth-20 serves multiple functions. It acts as an emulsifier, helping to blend oil and water-based ingredients into stable formulations. Additionally, it functions as a surfactant, reducing surface tension and aiding in the even distribution of active ingredients. Steareth-20 also exhibits mild cleansing properties and can enhance the foaming capabilities of products.

This ingredient is known for its ability to improve the texture and feel of cosmetic formulations, contributing to a smooth and luxurious application. It's commonly found in creams, lotions, cleansers, and hair care products. While generally considered safe for use in cosmetics, individuals with sensitive skin should perform patch tests, as with any new skincare ingredient. Steareth-20's efficacy and versatility make it a valuable component in modern skincare formulations.

Trideceth-6 is a versatile synthetic surfactant and emulsifier widely used in cosmetic and personal care formulations. This nonionic compound is derived from ethoxylated tridecyl alcohol, with an average of 6 ethylene oxide units per molecule. Its chemical structure grants it excellent solubilizing properties, making it particularly effective in creating stable emulsions and enhancing the miscibility of oils and water-based ingredients.

In skincare products, Trideceth-6 functions as an emulsifying agent, helping to blend and stabilize oil and water components. It also acts as a mild cleansing agent and can improve the spreadability of formulations. This ingredient is valued for its ability to enhance the penetration of other active ingredients into the skin, potentially increasing their efficacy.

Trideceth-6 is generally well-tolerated by most skin types and is considered to have low irritation potential. It's commonly found in cleansers, moisturizers, serums, and various other skincare products. While it's primarily used for its functional properties, Trideceth-6 can indirectly contribute to skin hydration by helping to create stable, long-lasting formulations that effectively deliver moisturizing ingredients to the skin.