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Tuvert "Barrier Shot Serum 2.0": A Thorough Breakdown

かずのすけ · ▶ 14:08 · 3 min read
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Translated from 日本語

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Overview

This is a summary of cosmetic chemist Kazunosuke's explanation of Tuvert's latest serum, "Barrier Shot Serum 2.0," covering its ingredient characteristics, how it feels in use, and how it differs from the previous product, "Barrier Shot Lotion."

3 min read
1:41

1. The Barrier Shot Series Concept: Stratum Corneum Barrier Care

  • The role of the stratum corneum: Only about 0.02 mm thick (roughly one sheet of plastic wrap), the stratum corneum serves an important barrier function, preventing water evaporation and blocking external irritants.
  • Current trend: The beauty industry is again focusing on maintaining the stratum corneum barrier, because doing so not only addresses dryness and rough skin but also helps prevent and address a wide range of skin concerns, including dark spots and wrinkles.
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2. Features of the Previous Product, "Barrier Shot Lotion"

  • Nano technology: Contains petrolatum and ceramides (four human-identical types plus a pseudo-ceramide) in a nanoemulsion.
  • Feel: A light, milky lotion that absorbs quickly into the stratum corneum without stickiness, despite containing petrolatum.
  • Formulation features: Glycerin-free, alcohol-free, fragrance-free, colorant-free, and formulated with niacinamide.
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3. What Makes the New "Barrier Shot Serum 2.0" Impressive

  • "Ceramide NG" right after water: An extremely rare high-concentration formulation in which a human-identical ceramide is listed immediately after purified water on the full ingredient list.
  • 2% human-identical ceramides in total: Contains 2% human-identical ceramides, which are expensive and difficult to formulate. Unlike milks and creams, it is a water-based serum, designed to penetrate the stratum corneum directly.
  • Five ceramides in total: Contains four human-identical ceramides (Ceramide NG, Ceramide AP, Ceramide NP, and Ceramide EOP) plus a pseudo-ceramide (Phytosteryl/Octyldodecyl Lauroyl Glutamate).
  • Emulsifiers kept to a minimum: A proprietary nanoemulsion technology keeps surfactants to a minimum (a small amount of hydrogenated lecithin), making it gentle on the skin.
  • Other beauty ingredients:
    • Panthenol (provitamin B5): Supports skin metabolism and cares for unstable skin.
    • Ectoine: A highly moisturizing amino acid derivative well suited to dry skin.
    • Sodium tocopheryl phosphate: A stable, amphiphilic vitamin E derivative.
    • NMF components, sugar-based moisturizers, and anti-inflammatory ingredients: A wide variety of ingredients that moisturize and help prevent rough skin.
  • Suitable for all skin types: Niacinamide-free, glycerin-free, and designed to be gentle, so it is easy to use even for people with oily or sensitive skin.
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4. Feel and Price

  • Texture: A watery texture thin enough to draw up with a dropper. It sinks smoothly into the skin and leaves no stickiness.
  • Price: 3,100 yen (tax included) for 30 ml. For a serum containing 2% human-identical ceramides, that is exceptional value for money.
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5. Choosing Between the Lotion and the Serum

  • Serum 2.0: Delivers a high concentration of human-identical ceramides to replenish the foundation of the stratum corneum barrier.
  • Lotion: Replenishes moisture and oil with ingredients such as nano petrolatum and prevents water evaporation.
  • Using both: Layering the two can be expected to provide even stronger stratum corneum barrier care.

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