# Rationale #1 The Serum

- **Brand:** RATIONALE
- **Price:** $125.00
- **Catalog:** exclusivebeautyclub
- **Retailer:** exclusivebeautyclub
- **Product URL:** https://go.cosimo.shop/r/gAAAAABq24DJH4c-JMDZSNK-r8AopA_VbyaVAO4bIjRo7vJqZd4DOqdcM8-iikg7_AMEvQPqb6SQhB73zKMwh29b6zlXHeLisG1tbI3tO5LY-mlO06jtABWNeKuKW1k-iH1w3Nu5FsCbuRe_ebMq-hV2jumee3-PnYugSGQJDyaZv_WACUSXDxkOCQI4wbIuUTKiS8XtP7mZOiS-602yf3QURXH5VcNB7Mocvsg3NqZyvqpK6inwIgoSkZbenRZgaLIG5vaGLLpVrz3Uu_QQ30QPUvhvnCxBbZlw0O8d8jQMWkjLkmHB-NadeRFG3aD143VB8UEwjWH3P2n921Uc-w9phPBnwyib5M3gYOCiJCa6AMkm6WLqgv6FVAToDgnCr5iaoBl2DQOjePcfZniO2V5hJn1qsmRfz8lsBcVgPIJ9f7f93BrJJBabEWvuPWwaBLR8-FWZigdjZxEwJ7wG6OilB_Y4eQ3rLQ==
- **GTIN:** 0806809681286
- **Availability:** In stock

## Summary

A barrier-strengthening face serum in a dark glass bottle with a white label and gold accent, formulated with Vitamin B Complex to calm redness and hydrate the skin.

## Description

A barrier-strengthening serum powered by Vitamin B Complex to visibly calm redness, support hydration, and restore skin resilience. RATIONALE #1 The Serum is a lightweight daily treatment serum formulated to strengthen the skin barrier, calm visible redness, and deeply hydrate combination and sensitive skin types. Powered by a proprietary Vitamin B Complex, soothing actives, and skin-identical lipids, this nourishing formula helps improve skin resilience while promoting a smoother, more balanced, and healthier-looking complexion. Designed for daily morning use, it layers effortlessly beneath moisturizers and SPF. Key Benefits  Helps visibly reduce redness  Strengthens the skin barrier  Deeply hydrates and replenishes Supports healthier-looking, more resilient skin Helps improve overall skin balance  Lightweight, fast-absorbing texture Ideal for sensitive and combination skin types

## Appearance

- **Sizes:** 1.0 fl. oz. (per-size availability under Variants)

## Variants

- **In stock:** 1 of 1
- **Available:** 1.0 fl. oz.

| Size | SKU | Availability |
| --- | --- | --- |
| 1.0 fl. oz. | RAT-RS | In stock |

## Categories

- **Categories:** Face Serums

## Additional Attributes

- **tags:** area-face, brand-rationale, cat-serum, concern-barrier-damage, concern-dehydration, concern-dry, concern-redness, concern-uneven-skin-tone, feature-paraben-free, feature-sulfate-free, formula-paraben-free, skin-combination, skin-dry, skin-normal, skin-sensitive
- **vendor:** Rationale
- **features:** Paraben-Free, Phthalate-Free, Sulfate-Free
- **how to use:** Dispense 2–3 drops into palm., Smooth gently over face, neck, décolletage and backs of hands.
- **ingredients:** Rosa Damascena (Rose) Flower Water, Niacinamide, Glycerin, Pentylene Glycol, Aloe Barbadensis (Aloe Vera) Leaf Juice, Aqua (Water), Methylpropanediol, Coco-Caprylate/Caprate, Glyceryl Stearate Citrate, Cetearyl Alcohol, Caprylyl Glycol, Olive Oil Decyl Esters, Xanthan Gum, PEG-40 Hydrogenated Castor Oil, Trideceth-9, Hydrogenated Lecithin, Cetyl Alcohol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Phenylpropanol, Santalum Spicatum (Sandalwood) Seed Oil, Citrus Aurantium Dulcis (Orange) Oil, Disodium EDTA, Glyceryl Caprylate, Squalene, Propylene Glycol, Butylene Glycol, Citrus Aurantium Bergamia (Bergamot) Fruit Oil, Citrus Grandis (Grapefruit) Peel Oil, Citrus Limon (Lemon) Peel Oil, Litsea Cubeba Fruit Oil, Citrus Aurantium Bergamia (Bergamot) Leaf Oil, Juniperus Mexicana Oil, Pelargonium Graveolens Oil, Citrus Aurantium Amara (Bitter Orange) Flower Oil, Eugenia Caryophyllus (Clove) Leaf Oil, Sodium Hyaluronate, Ascorbyl Glucoside, Collagen Amino Acids, Polysorbate 60, Sorbitan Isostearate, Citric Acid, Ceteareth-25, Potassium Sorbate, Magnesium Aspartate, Zinc Gluconate, Brachychiton Acerifolius Flower Extract, Sodium Benzoate, Leuconostoc/Radish Root Ferment Filtrate, Leuconostoc/Radish Root Ferment Lysate Filtrate, Phospholipids, Adenosine Triphosphate, Glycosphingolipids, Behenic Acid, Ceramide NP, Cholesterol, Copper Gluconate, Ethylhexylglycerin, Phenoxyethanol, Ceramide NS, Glycine, Tocopherol, Serine, Glutamic Acid, Ceramide AP, Ceramide EOP, Ceramide EOS, Banksia Serrata Flower Extract, Citrus Australasica Fruit Extract, Davidsonia Pruriens Fruit Extract, Hibiscus Sabdariffa Flower Extract, Melaleuca Alternifolia (Tea Tree) Leaf Extract, Santalum Acuminatum Fruit Extract, Tasmannia Lanceolata Fruit Extract, Telopea Speciosissima Flower/Leaf Extract, Terminalia Ferdinandiana Fruit Extract, Aspartic Acid, Leucine, Acetyl Octapeptide-3, Caprooyl Phytosphingosine, Caprooyl Sphingosine, Alanine, Lysine, Arginine, Tyrosine, Phenylalanine, Proline, Threonine, Valine, Isoleucine
- **product type:** Face Serums
- **shopify handle:** rationale-1-the-serum
- **key ingredients:** The Primary ComplexA proprietary B-Group Vitamin Complex strengthens barrier function., The Secondary ComplexA unique profile of Skin Soothing Actives delivers a calmer looking complexion., The Delivery SystemWater-based system that carries active ingredients into the skin.

## Enrichment

- **Type:** face serum
- **Type Synonyms:** facial serum, skin serum
- **Tags:** dropper bottle, glass bottle, liquid skincare
- **Styles:** minimalist
- **Category Path:** Beauty > Skincare > Moisturizers & Everyday Care > Face Moisturizers
- **Moisturizer type:** Day Care
- **Product form:** Serum
- **Suitable for skin type:** Combination, Sensitive, With Redness
- **Canonical Brand:** RATIONALE

## Images

- ![Image 1](https://cdn.storerouter.ai/3fcefc083703ad4ff9c22f54e9c93cb0/7d3091fcc9cf037a6a80a9c0fadb57a8.webp)
- ![Image 2](https://cdn.storerouter.ai/3fcefc083703ad4ff9c22f54e9c93cb0/20d053c91b232130510417b3d8458cc3.webp)
- ![Image 3](https://cdn.storerouter.ai/3fcefc083703ad4ff9c22f54e9c93cb0/d0f03733ae68843b36e09fc07d687c80.webp)
- ![Image 4](https://cdn.storerouter.ai/3fcefc083703ad4ff9c22f54e9c93cb0/6282b02648442ba7e6deb6cf891a33a1.webp)

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*Source: cosimo.shop | Product ID: f5ad5e9b-3188-53c4-ad12-a0804ef5ed17 | Canonical URL: https://cosimo.shop/product/rationale/rationale-1-the-serum-0a6ceba0-d8b0-4b74-938a-652734b8e447*