Dot & Key Blueberry Hydrating Barrier Repair Face Sunscreen SPF 50+ PA++++ - 100% No White Cast

1,2-Hexanediol is a multifunctional ingredient widely used in skincare and cosmetic formulations. This colorless, low-viscosity liquid belongs to the aliphatic alcohol family and serves as a versatile humectant, preservative enhancer, and solvent. Its molecular structure allows it to attract and retain moisture, contributing to improved hydration in skincare products.

As a preservative booster, 1,2-Hexanediol works synergistically with traditional preservatives, enhancing their efficacy and allowing for lower concentrations of potentially irritating antimicrobial agents. This property makes it particularly valuable in formulating gentle, yet microbiologically stable products.

In addition to its preservative-enhancing capabilities, 1,2-Hexanediol functions as an effective solvent, aiding in the dissolution and dispersion of active ingredients and fragrances. This characteristic improves the overall stability and sensory properties of cosmetic formulations.

The ingredient also exhibits emollient properties, contributing to a smooth and pleasant skin feel. Its low molecular weight allows for easy penetration into the stratum corneum, potentially enhancing the delivery of other active ingredients.

While generally well-tolerated, as with any skincare ingredient, patch testing is recommended for individuals with sensitive skin or a history of allergic reactions.

Allantoin is a versatile and well-tolerated skincare ingredient derived from comfrey root or synthesized in laboratories. This multifaceted compound is known for its keratolytic, moisturizing, and soothing properties, making it a valuable addition to various skincare formulations. Allantoin promotes cell proliferation and epithelialization, which accelerates wound healing and skin regeneration. Its gentle exfoliating action helps remove dead skin cells, improving skin texture and appearance.

The ingredient's moisturizing capabilities stem from its ability to increase water content in the extracellular matrix, enhancing skin hydration and elasticity. Allantoin also exhibits anti-inflammatory properties, helping to calm irritated skin and reduce redness. Its low molecular weight allows for easy penetration into the skin, ensuring efficient delivery of its benefits.

Allantoin is commonly used in concentrations ranging from 0.1% to 2% in skincare products. It is particularly beneficial in formulations targeting sensitive, dry, or compromised skin. The ingredient's compatibility with most other skincare actives and its stability across a wide pH range make it a versatile choice for formulators. Allantoin is found in various products, including moisturizers, serums, lotions, and post-procedure skincare treatments.

Anhydroxylitol is a cutting-edge skincare ingredient derived from natural xylitol, a sugar alcohol found in various plants. This moisture-binding agent belongs to the family of humectants and plays a crucial role in maintaining skin hydration. Its molecular structure allows it to penetrate the skin's outer layers effectively, drawing and retaining moisture from the environment.

Anhydroxylitol's primary function is to enhance the skin's natural moisturizing factor (NMF), which is essential for maintaining optimal hydration levels. It works synergistically with other humectants like hyaluronic acid and glycerin to create a robust moisture barrier. This ingredient is particularly beneficial for individuals with dry, dehydrated, or sensitive skin types.

Clinical studies have shown that anhydroxylitol can significantly improve skin hydration within hours of application, with effects lasting up to 24 hours. It also demonstrates mild anti-inflammatory properties, potentially helping to soothe irritated skin. Anhydroxylitol is non-comedogenic and well-tolerated by most skin types, making it a versatile ingredient in various skincare formulations, including serums, moisturizers, and hydrating masks. Its ability to enhance skin barrier function may also contribute to improved overall skin health and resilience.

Benzophenone-3, also known as oxybenzone, is a widely used organic compound in sunscreen formulations and other personal care products. This synthetic chemical functions as a broad-spectrum UV filter, effectively absorbing both UVA and UVB radiation. Its ability to protect against a wide range of ultraviolet light makes it a valuable ingredient in sun protection formulas.

Chemically, benzophenone-3 is a aromatic ketone with the molecular formula C14H12O3. It appears as a pale yellow solid at room temperature and is soluble in most organic solvents. In sunscreens, it typically comprises 1-6% of the formulation.

While effective in UV protection, benzophenone-3 has faced scrutiny due to potential environmental and health concerns. Studies have suggested it may contribute to coral reef bleaching and disrupt endocrine function in some marine life. Additionally, there are concerns about its potential for skin absorption and allergic reactions in humans.

Due to these issues, some jurisdictions have restricted or banned its use in sunscreens. Formulators are increasingly exploring alternative UV filters to replace benzophenone-3 in sun care products, balancing efficacy with environmental and health considerations.

Cholesterol is a vital lipid compound naturally present in the skin's stratum corneum, playing a crucial role in maintaining skin barrier function and overall skin health. This multifaceted ingredient is a key component of cell membranes and contributes significantly to skin hydration, elasticity, and protection against environmental stressors.

In skincare formulations, cholesterol is often used as an emollient and occlusive agent, helping to reduce transepidermal water loss and improve skin moisture retention. Its molecular structure allows it to integrate seamlessly with the skin's natural lipid matrix, enhancing barrier repair and promoting a smoother, more resilient skin surface.

Cholesterol has been shown to work synergistically with other skin-identical lipids, such as ceramides and fatty acids, to optimize skin barrier function. This combination can be particularly beneficial for individuals with dry, sensitive, or mature skin types. Additionally, cholesterol may help mitigate the effects of UV damage and support the skin's natural healing processes.

When formulating with cholesterol, it's essential to consider its stability and compatibility with other ingredients to ensure maximum efficacy and product longevity.

Cyclopentasiloxane is a versatile silicone-based compound widely used in skincare and cosmetic formulations. This colorless, odorless liquid belongs to the cyclomethicone family and is known for its excellent spreading properties and quick evaporation rate. Its low surface tension allows for smooth application across the skin, creating a silky, non-greasy feel.

In skincare products, cyclopentasiloxane functions primarily as an emollient and carrying agent. It helps to improve the texture and application of formulations, enhancing the overall sensory experience. The ingredient's ability to form a breathable, protective film on the skin makes it valuable in products designed to provide temporary barrier protection.

Cyclopentasiloxane is particularly effective in hair care products, where it imparts shine and smoothness without weighing down the hair. In makeup formulations, it aids in even pigment distribution and extends wear time. While generally considered safe for topical use, some concerns have been raised about its potential environmental impact, leading to ongoing research and regulatory discussions in certain regions. As with any cosmetic ingredient, individual sensitivities may vary, and patch testing is recommended for those with sensitive skin.

Dimethicone, also known as polydimethylsiloxane (PDMS), is a versatile silicone-based polymer widely used in skincare and cosmetic formulations. This synthetic ingredient is prized for its ability to create a smooth, silky texture and form a protective barrier on the skin's surface. Dimethicone is characterized by its clear, colorless appearance and its unique ability to spread easily without feeling greasy or heavy.

In skincare products, dimethicone functions as an emollient and occlusive agent, helping to reduce transepidermal water loss and maintain skin hydration. It also acts as an effective skin protectant, shielding against environmental stressors and irritants. Dimethicone's film-forming properties contribute to the temporary filling of fine lines and wrinkles, creating a smoother skin appearance.

This ingredient is generally well-tolerated by most skin types, including sensitive skin, and is non-comedogenic. It's commonly found in moisturizers, serums, primers, and foundations. Dimethicone's molecular structure allows it to blend well with other ingredients, enhancing the overall texture and performance of skincare formulations. While some concerns have been raised about its potential environmental impact, dimethicone remains a staple in many skincare products due to its efficacy and versatility.

Glycerine, also known as glycerol, is a versatile and widely used ingredient in skincare and cosmetic formulations. This colorless, odorless, viscous liquid is a natural humectant, meaning it attracts and retains moisture from the environment. Glycerine's molecular structure allows it to penetrate the skin's outer layers, providing deep hydration and improving overall skin barrier function.

In skincare products, glycerine typically comprises 0.5% to 5% of the formulation. It works synergistically with other moisturizing agents to enhance product efficacy. Glycerine's hygroscopic properties help maintain skin elasticity, reduce the appearance of fine lines, and promote a smoother complexion. Additionally, it aids in the delivery of other active ingredients deeper into the skin.

Glycerine is non-comedogenic and suitable for all skin types, including sensitive and acne-prone skin. It has mild antimicrobial properties and can help soothe irritated skin. In hair care, glycerine helps retain moisture, preventing dryness and frizz. Its stability across a wide pH range and compatibility with most cosmetic ingredients make it an invaluable component in various personal care products, from lotions and serums to cleansers and toners.