#1 The Serum
#1 The Serum
#1 The Serum
Side arrow
Side arrow
Step 1: Resilience
?
This Collection delivers a proprietary Complex of B-Group Vitamins which support immunity and barrier function.

#1 The Serum

30ml

¥1,226.00
This sophisticated serum supports skin barrier defence with a proprietary Complex of B-Group vitamins, restoring radiance as it amplifies hydration.

Use in the AM

Benefits
Plus
Minus
Hydrates
Nourishes
Enhances radiance
Targets
Plus
Minus
Dehydration
Blemishes and congestion
Fine lines and wrinkles
Ingredients
Plus
Minus
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, Histidine, Limonene, Citral, Citronellol, Geraniol, Linalool, Eugenol
Complimentary

Complimentary shipping on all orders.

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, Histidine, Limonene, Citral, Citronellol, Geraniol, Linalool, Eugenol

The Ritual

Dispense 2–3 drops into palm.

Smooth gently over face, neck, décolletage and backs of hands.

To discover how to introduce this formulation into your RATIONALE Ritual, connect with our Team of Online Skin Consultants.

Inside The Formulation

Every RATIONALE Formulation is crafted with the highest quality of ingredients, formulated into three key Complexes.

The Primary Complex
Plus
Minus

A proprietary B-Group Vitamin Complex strengthens barrier function. 

What is a Primary Complex?

Key ingredients that predominantly influence a Formulation.

The Secondary Complex
Plus
Minus

A unique profile of Skin Soothing Actives delivers a calmer looking complexion.

What is the Secondary Complex?

Key ingredients that complement the Primary Complex.

The Delivery System
Plus
Minus

Water-Based

What is the Delivery System?

Carries active ingredients into the skin.

The Essential Six System

AM
PM
Step 1: Resilience
This Collection delivers a proprietary Complex of B-Group Vitamins which support immunity and barrier function.
2
Step 2: Vitality
This collection delivers a proprietary Complex of Antioxidants—including Vitamin C—for antioxidant protection.
Shop Now
3
Step 3: Brilliance
This Collection delivers a proprietary Complex of Zinc Fusion Technology, Iron Oxides, and Melanin to offer superlative protection.
Shop Now
4
Step 4: Integrity
This Collection delivers a proprietary Complex of Ceramides and Lipids, which restore and nurture the skin’s barrier function.
Shop Now
5
Step 5: Clarity
This Collection delivers a proprietary suite of AHAs and Peptides to recalibrate the skin’s pH—for a refined, clear complexion.
Shop Now
6
Step 6: Renewal
This collection delivers Vitamin A—including Retinol—and Botanical Retinol Alternatives to support cellular turnover.
Shop Now

The Results

91%

reported improved skin hydration.

82%

saw a boost in radiance.

82%

experienced enhanced skin nourishment.

*Based on a 56-day trial with 22 participants

The Research

The skin has its own immune system, with specialised tissues and cells playing a vital role in preventing environmental damage, allergy and disease.

The concept of skin immunity and beauty are exquisitely linked, with a healthy, resilient skin reflected in a clear and even complexion.

The vital processes of cell-to-cell communication and skin barrier function are supported by B-group vitamins and the phospholipid-protein structures of skin’s outermost layer, the Stratum Corneum.

Frequently Asked Questions

How does #1 The Serum fit into my Ritual?

Plus
Minus

#1 The Serum is applied first in your morning (AM) ritual, before Hydragels and Crèmes, and after rinsing your skin with warm water.

Is #1 The Serum suitable for all skin types?
Plus
Minus

Yes, #1 The Serum is suitable for all skin types.

What are the benefits of the B-Group Vitamin Complex?
Plus
Minus

This unique Complex of B-Group Vitamins boosts skin immunity by enhancing the resilience of skin cells and strengthening the barrier function. Skin appears calmer as redness and irritation are reduced.

How is our B-group Vitamin Complex superior to Niacinamide alone?
Plus
Minus

The B-group Vitamin Complex found in the Resilience Collection delivers a broader range of benefits to the skin compared to Niacinamide alone. This enhances the Formulation's ability to target various skin types and conditions.

What is the difference between #1 The Serum and #2 The Serum? And do I need to use both in my Ritual?
Plus
Minus

#1 The Serum supports skin barrier defence with a Complex of B-Group Vitamins, while #2 The Serum defends skin from oxidative stress with a Complex of Antioxidants. It is recommended to use one Formulation from #1 The Resilience Collection and one from #2 The Vitality Collection to optimise skin health.

What is the difference between a serum and a hydragel?
Plus
Minus

A serum is primarily water-based, offering a light consistency and quick delivery. On the other hand, hydragels, although lightweight, contain a combination of water and oil, resulting in a slower delivery in comparison.

Can this Formulation be used during pregnancy and breastfeeding?
Plus
Minus

Yes, #1 The Serum can be used during pregnancy and breastfeeding, especially for those experiencing signs of dehydration, blemishes, and congestion.