PhotoDynamic Day Cream SPF15

Step 3 of the Rationale Essential Six system. PHOTODYNAMIC Day Cream SPF15 harnesses the power of light to simultaneously rejuvenate the skin and boost Vitamin D levels. Nutrients Zinc and Betacarotene protect and replenish, while light diffusing particles deliver immediate dewy luminosity.


Product Description

PHOTODYNAMIC DAY CREAM SPF15 uniquely harnesses the power of light to rejuvenate the skin and boost Vitamin D levels, while offering photoprotection throughout the entire Solar Constant (the medical term for UV, Infrared + Visible Light combined). Skin identical sunscreens Zinc and Melanin form a soothing, protective shield with a super light skin feel and ultra-sheer application. Macro hydrators and light diffusing particles complete the profile and deliver an immediate skin perfecting and dewy luminosity.


-  Rejuvenates skin by harnessing the power of light
-  Restores firmness and elasticity
-  Lifts and tightens
-  Particulate sunscreens absorb, reflect and redirect harmful UV light into photo-rejuvenating wavelengths
-  Stimulates synthesis of UV protective Heat Shock Proteins
-  Absorption throughout the entire Solar Constant- InfraRed, Visible Light and UV radiation
-  Photo rejuvenating effect in epidermis and dermis
-  Delivers antioxidant protection
-  Microcrystalline light diffusing particles deliver an immediate skin-perfecting luminosity
-  Supplementation of skin Vitamin D levels in the skin




-  Apply 1-2 drops of IMMUNOLOGIST SERUM to face, neck, chest and backs of hands each morning.
-  Follow with 1-2 drops of SUPER ANTIOXIDANT SERUM for optimal antioxidant protection.
-  Finish with PHOTODYNAMIC DAY CREAM SPF15 for maximum rejuvenation and protection.


Active Ingredients

Photoprotective, photosynethetic + photorejuvenating agents 

Zinc Oxide
-  The only sunscreen found naturally in the body.
-  Acts as a photo catalyst and absorbs and scatters UV radiation, converting it to heat and light that has a rejuvenating effect on skin connective tissue. 

-  A unique and photo-stable new UV filter, which has both organic and inorganic properties
-  UVA + UVB action spectrum
-  Also initiates a catalytic effect.

Crown of Gold Extract
-  An Australian Photoprotective Botanical extract containing a Stillbenoid Piceid Glucoside that provides multiple pathways of solar protection including the activation of Antioxidant Transcription Factors and Heat Shock Proteins combined with a reduction Cytotoxic Photoproducts and Apoptotic Sunburn Cells. 

Indian Mulberry + Carmine 
-  Naturally occurring iridiphores (target pigments) that absorb UV and visible light
-  Converts UV & visible light to low energy coherent light that has a radiant photo-rejuvenating effect in skin

-  Forms a photo-protective film over the skin and assists in converting UVR to photo-rejuvenating spectra of heat and light

Acetyl Tetrapeptide-22 
-  A photoprotective peptide that stimulates synthesis of Heat Shock Protein-70 (HSP-70).
-  HSP’s are important photo-protective agents in cutaneous biology. -
-  Heat Shock Proteins are a class of functionally related proteins involved in the folding and unfolding of other proteins. Their expression is increased when cells are exposed to elevated temperatures or other stress. (1)
-  HSP-70 proteins can act to protect cells from thermal or oxidative stress.
- These stresses normally act to damage proteins,causing partial unfolding and possible aggregation. By temporarily binding to hydrophobic residues exposed by stress, HSP-70 prevents these partially denatured proteins from aggregating and allows them to refold. In addition to improving overall protein integrity, HSP-70 directly inhibits apoptosis. (2)

- Melanin is the skins own sunscreen however, it becomes inactive with age.
- The photochemical properties of melanin make it the ideal photo protectant as it displays a hyper efficient capacity to absorb 99.9% UVR and transform it to heat through a process known as Ultrafast Internal Conversion (UIC).
- Melanin is the most potent known protector against UVR induced DNA damage.

7- Dehydrocholesterol (7-DHC)
- Precursor to Vitamin D found throughout the epidermis.
- When irradiated by UVR, 7-DHC converts to Vitamin D in situ. In this way we have used sunlight to increase and supplement skin Vitamin D levels.
- The presence of this compound in human skin enables humans to manufacture Vitamin D3 from Ultra Violet rays in sunlight, via an intermediate isomer pre-vitamin D3. (3)


Vitamin A
-  Retinol, Retinyl Palmitate + Betacarotene

Vitamin B
- Niacinamide + Pantothenic Acid

Vitamin C
-  Ascorbyl Tetraisopalmitate + Ascorbyl Palmitate

Vitamin D
-  Cholecalciferol (VitaminD3)

Vitamin E
-  αβγδTocopherols, αβγδTocotrienols + TocopherylAcetate

Phytoceutical Extracts

Skin Lightening Actives 
-  Mallow, Peppermint, Key Flower, Alpine Lady’s Mantle, Gypsyweed, Melissa + Yarrow

Antioxidant Phytoceuticals 
-  Juniper, Orange, Neroli, Grapefruit + Lemon

Anti-Inflammatory Phytoceuticals 
-  Clove, May Chang, Lavender, Lavandin + Geranium


"I love the golden glow it instantly gives to my skin, all the while keeping it really hydrated and protected." - Adrianne (VIC)

"This is the best product I have ever used on my face! It makes my skin feel so fresh and bright and hydrated. Plus it protects my skin from the sun. I just love it!" - Lina (VIC)

"The perfect soloution for having a great, glowing complexion!"- Caitlyn (NSW)

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As your order is to be delivered outside of Austraila, it may incur local customs duty, import taxes and/or fees determined by the destination country. The recipient of the shipment is responsible for all duties taxes and fees. If you refuse a shipment, you are responsible for the original shipping charges and any fees that are incurred on the package.