ONE/SIZE B12 Foundation Thinner & Radiance Boosting Serum-ONE/SIZE by Patrick Starrr

Here’s a more polished, elevated, and retail-ready version of your product description for **ONE/SIZE B12 Base Thinner Luminous Vitamin Pearl Boosting Serum**:

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## ONLY AT SEPHORA

### What It Is

A versatile **3-in-1 primer, mixing medium, and treatment serum** that instantly boosts glow, customizes foundation coverage and finish, deeply hydrates, and visibly softens the look of fine lines.

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### Why You’ll Love It

* Instantly adds natural, healthy-looking luminosity
* Thins and transforms cream & liquid foundation formulas
* Enhances hydration for smoother, plumper-looking skin
* Helps visibly reduce the look of lines over time
* Can be worn alone, under makeup, or mixed into skincare

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### Highlighted Ingredients

**Vitamins B12, C & E**
Help condition skin while defending against environmental stressors for a brighter, healthier appearance.

**Beta-Glucan & Hyaluronic Acid**
Deliver intense, long-lasting hydration for plump, bouncy-looking skin.

**Ceramides + Adenosine**
Support the skin barrier, prevent moisture loss, and visibly smooth the look of fine lines and wrinkles.

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### Ingredient Callouts

* Free from parabens, formaldehydes, formaldehyde-releasing agents, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, sulfates (SLS & SLES), triclocarban, and triclosan
* Contains less than 1% synthetic fragrance
* Vegan, gluten-free, and cruelty-free

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### Clinical Results

In consumer testing, **100% of participants agreed** the serum:

* Transforms cream & liquid formulas
* Adds natural luminosity to makeup
* Provides a healthy-looking glow

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### How to Use

**As a Primer:**
Apply 1–2 pumps to clean, moisturized skin before foundation for smoother, more radiant application.

**As a Mixing Medium:**
Blend 1–2 pumps with your liquid or cream foundation to customize coverage, finish, and warmth.

**As a Serum:**
Wear alone for instant hydration and glow, or mix into your skincare routine to enhance radiance and visibly smooth fine lines over time.

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If you’d like, I can also create a shorter version for Amazon, a luxury version for a boutique website, or a punchy social media caption version.