#5 The Serum
This advanced serum recalibrates skin's pH balance with a Complex of Hydroxy Acids, evening out skin tone and texture while amplifying radiance.
Use in the PM
Same Day Delivery and Click + Collect offered in metro areas.
At RATIONALE, we’re pleased to report the proportion of participants who observed the following improvements in their skin after use of #5 The Serum* :
81% reported ↑ Radiance and Brightness
91% reported ↑ Even tone
75% reported ↑ Firmness
*Based on a 28-day trial with 21 participants
Dispense 2–3 drops into palm.
Gently smooth over face, neck, décolletage and backs of hands, avoiding the delicate eye area.
To discover how to introduce this formulation into your RATIONALE Ritual, connect with our Team of Online Skin Consultants.
The pH of the skin’s outermost layer, the Stratum Corneum, is vital to complexion health, vitality and beauty.
The ideal state of the Stratum Corneum is acidic, as these conditions maintain the upregulation of enzymes critical to the synthesis of collagen and elastin (skin connective tissues that provide skin structure and firmness), as well as helping to prevent collagen breakdown, sensitivity, breakouts and infection.
Throughout life, skin becomes more alkaline as a result of intrinsic ageing and environmental damage. This leads to an upregulation of enzymes that break down skin connective tissues, leading to premature ageing, wrinkles and sagging.
Recalibrating and maintaining the acidic pH of skin is possible via a nightly regime of topically applied hydroxy acids which help to reverse the effects of facial ageing and environmental damage.