About Single-use Essence/Serum

About Single-use Essence/Serum

"Single-use Essence/Serum" refers to a type of essence that comes in single-use, disposable packaging.There are several names on the market of this kind of products. Hereinafter collectively referred to as single-use essence (serum).

For more precise and quantitative usage, this type of skincare product differs from the usual bottled versions. The packaging material for single-use essence is medical-grade PP granules blown into small soft bottles for filling. It is a single-dose skincare product packaged using B.F.S. (Blow-Fill-Seal) technology, an automated sealing process. This independent packaging significantly reduces the risk of microbial contamination, making it cleaner and more hygienic, while also preserving the activity of the effective ingredients.

Let's explore the advantages of single-use essence (serum) with the expertise of O.K.K skincare professionals as below:

  1. Technical Advantages

    The B.F.S. technology, which stands for "Blow-Fill-Seal," is a high-level aseptic filling technology for pharmaceuticals. It achieves a high level of automation in production, minimizing the interference of operators in aseptic manufacturing. This provides a higher level of aseptic assurance and GMP standards, ensuring that the product contains no preservatives and achieving true terminal sterilization.
  1. Functional Advantages
    Single-use essence (serum) are more targeted, specifically addressing skin issues. With a minimalist formula focused on a single effect, they are the purest form of concentrated essences, often referred to as "liquid platinum" or "injectable hydrating masks." Their small molecular size allows for quick absorption, and a single dose can achieve comprehensive efficacy, effectively addressing the complexity of skincare routines.
  1. Packaging Advantages
    The packaging design is elegant and compact, making it more convenient and safe to carry around compared to glass ampoules.

Let's take a closer look at the O.K.K Multi-Whitening Single-use Essence(Serum) as an example of its hard-hitting qualities.

It has a lightweight texture but provides good moisturizing and spreading abilities, absorbing quickly without thick and greasy.

Key Whitening Ingredients :

Niacinamide: Inhibits tyrosinase activity, reducing melanin production for whitening and spot-lightening effects. It also promotes the production of aquaporin, accelerating water transport into cells, indirectly providing moisturizing benefits.

Rucinol (577 - 4-Butylresorcinol)POLA's former Patented Ingredient.

Effectively inhibits the activity of melanin cells, reducing the production of pigmentation and dullness. It also has powerful antioxidant properties, helping the skin resist free radical damage and maintain a youthful state.

Arbutin: Inhibits melanin production at the source, reducing skin pigmentation and achieving whitening, antibacterial, and anti-inflammatory effects, leaving the skin smoother and brighter.

The moisturizing components are based on basic polyols, sugar alcohols, and glycerin, combined with high-molecular-weight hyaluronic acid and hydrolyzed sodium hyaluronate. The hydrolyzed sodium hyaluronate is a highly active, ultra-low molecular weight hyaluronic acid with a molecular weight of 3k-10K daltons. It can be absorbed through the skin, reaching the dermis, providing deep moisturization. Together with high and low molecular weight hyaluronic acid, it forms a "hive hyaluronic acid" three-dimensional network structure, combining deep moisturizing and film-forming moisturizing, enhancing the moisturizing effect.

This serum is formulated with 70% whitening, 20% moisturizing, and 10% anti-oxidation and anti-aging effects. The ingredients are pure with no excessive modifiers. It combines whitening and spot-lightening, antioxidant protection, high moisturizing, and anti-aging to achieve an overall brightening effect on the skin. The overall gentleness of the product is excellent, mainly due to the secondary toss packaging, which eliminates the need for additional preservatives, reducing irritation.

This serum is suitable for all skin types, including sensitive skin, making it a great choice for your daily skincare.

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