#3 The Tinted Serum Broad Spectrum SPF50+
#3 The Tinted Serum Broad Spectrum SPF50+
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The Brilliance Collection
Brilliance. Inspiration. Illumination.
The Story
This hydrating daily serum imparts a radiant, translucent finish while offering advanced solar and environmental protection with our proprietary Zinc Fusion technology.
Fortified with Skin Identical Melanin and photo-protective metallic oxides, these bioactive pigments are responsible for creating the formulation’s luminescent, non-whitening tint.
Skin radiance amplified by one unique, light-filled formulation.
The Promise
- Elicits immediate luminosity with light-reflecting particles.
- Provides solar and environmental protection while rejuvenating skin.
- Strengthens skin integrity and alleviates irritation.
- Calms skin for a more even, illuminated appearance.
- Renewed firmness is realised with a multi-vitamin complex.
The Ritual
Shake well to activate formula.
Apply to face, neck, décolletage and backs of hands each morning. This formulation may be reapplied throughout the day as needed, especially after sweating or being in water.
This product comes with a pump options as well.
The Research
Long have we studied the profound interactions of human skin, sunlight and metallic oxides including Zinc. Found in abundance throughout the human body, Zinc is vital to the health of every cell. Beyond delivering radiant skin and cellular nutrition, topical Zinc Oxide forms a protective shield against sunlight and environmental aggressors. But we’ve gone much deeper with Zinc…
Marking a new paradigm in multifaceted skincare, #3 The Tinted Serum SPF50+ boasts an entirely unique and innovative complex of Zinc Oxide—a powerhouse antioxidant and environmental protector. Our proprietary array of Zinc particle profiles delivers a radiant, translucent finish with comprehensive solar protection benefits, filtering UV, Visible Light and Infrared Radiation. We call this The Solar Constant.

bisma's take
oh this dreamy dreamy girl...talk about a blurring, glowing, light weight LOVER! this spf is one of the best, lightweight, complete sun protections on the market - period!
the skin protocol
the skin protocol
the full ingredient list
the full ingredient list
about rationale
about rationale
Since 1992, RATIONALE has delivered Luminous Skin for Life with a luxurious suite of formulations and treatment experiences that enlighten and transform.
From their world-leading research laboratory at RATIONALE HQ in Kyneton, RATIONALE remains compelled to develop superlative formulations which offer unparalleled environmental skin protection and repair, restoring natural beauty and radiance.
The Essential Six Collections have been crafted around the six facets of skin luminosity:
Resilience, Vitality, Brilliance, Integrity, Clarity and Renewal.
Every RATIONALE Ritual is built upon these six facets and is tailored to your unique skin needs.
The ultimate expression of a profound understanding of human skin, world-leading Australian solar research and Skin Identical technology, this suite of definitive formulations works synergistically with skin—and each other—to offer nourishing protection by day and revitalizing repair at night, reanimating skin’s natural radiance.
The result is Luminous Skin for Life.
About Essential Six
The cornerstone of the RATIONALE range is the Essential Six Collections—a system built around the six facets of skin health and luminosity, and acknowledged worldwide as the definitive skincare for skin protection and repair, restoring natural beauty and radiance. Tailored to every individual’s skin, an Essential Six Ritual acts as the skin’s daily nutrition, providing all the Skin Resilience Boosters, Antioxidants, Environmental Protection, Barrier Fortification, pH Recalibration and Nightly Repair needed for skin to glow with radiant health. By day, the Essential Six ritual offers vital support to skin’s innate resilience, antioxidant nourishment to boost skin vitality, and delivers comprehensive protection from the entire Solar Constant—made up of ultraviolet, visible light and infrared radiation—as well as against pollution and other environmental aggressors. By night, the Essential Six evening routine works to repair and reverse daytime damage by replenishing the skin’s lipid barrier and recalibrating skin’s pH to a healthy, acidic level. Repair processes are supported for overnight rejuvenation and cellular regeneration for a visibly more luminous complexion by morning.
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