#1 The Strengthening Collection

Strengthening

B-Group Vitamin Complex with Niacinamide

Formulations for each skin type resulting in stronger, more hydrated skin.

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#1 The Serum

$126.00

#1 The Hydragel

$244.00

#1 The Strengthening Crème

$229.00

#1 The Mask

$108.00

Suited to

["Resilient skin"]

The Anti-Ageing Trio (Resilient)

$589.05 $693.00

The Protect Daily Duo

$405.90 $451.00

The Discovery Travel Kit

$545.00

The Anti-Ageing Trio (Sensitive)

$607.75 $715.00

Frequently Asked Questions

What is The Strengthening Collection?

The Strengthening Collection is the first step of our six essential collections, formulated around a Vitamin B Complex – including niacinamide – to support and fortify barrier function. Each formulation works to calm the appearance of redness, refine the look of pores, and build resilience over time. It is the foundation of every RATIONALE morning ritual, and with a delivery system, or formulation type, suitable for every skin type.

What does a Vitamin B Complex do for skin?

A Vitamin B Complex, particularly niacinamide (Vitamin B3), is a cornerstone active in supporting healthy barrier function. It helps regulate sebum, calm the appearance of redness, refine the look of pores, and build skin resilience against solar and environmental damage. As a Skin Identical molecule, it is well tolerated by all skin types and forms the foundation of strengthened, balanced skin.

Who is The Strengthening Collection suited to?

With a variety of delivery systems to suit different skin types and concerns, The Strengthening Collection is suitable for all skin types and is especially beneficial for skin that feels reactive, congested, or compromised. It serves as the foundational step in the morning ritual for every RATIONALE client. If you are new to RATIONALE or unsure where to begin, our Skin Questionnaire will help identify the formulation best suited to your skin type and goals.

When should I apply Strengthening formulations — AM or PM?

The Strengthening Collection is formulated for daytime use, building the foundation of your daily skincare routine. Apply on refreshed skin, before your Brightening and Brilliance formulations. The strengthening action of Vitamin B Complex supports barrier function throughout the day, helping skin defend against solar and environmental stressors.

Which RATIONALE Strengthening formulation is right for me?

The Strengthening Collection includes #1 The Strengthening Serum for combination skin, #1 The Strengthening Hydragel for hydration-focused skin, #1 The Strengthening Crème for dry or mature skin, and #1 The Strengthening Mask for resilient skin. Each is built around the same Vitamin B Complex with a texture and ingredient matrix tailored to specific skin types. Our Skin Questionnaire or Client Services Team can guide your selection for a more tailored approach to your individual needs.

Can I combine The Strengthening Collection with other collections?

Yes—and we recommend it. The Strengthening Collection forms the daytime base for most RATIONALE Rituals. It layers seamlessly with The Brightening Collection (Vitamin C antioxidant defence) and The Brilliance Collection (Zinc Oxide SPF), completing the three protective daytime pillars of the Essential Six. In the evening, follow with formulations from The Nourishing, Refining, or Rejuvenating Collections for night-time repair.

Is niacinamide suitable for sensitive skin?

Yes. Niacinamide is one of the most universally well-tolerated actives in skincare, suitable for sensitive, reactive, and barrier-compromised skin. It works to calm the appearance of redness while supporting healthy barrier function. We always suggest introducing new active formulations gradually and consulting our Client Services Team or a RATIONALE Skin Therapist for personalised guidance.