It's advisable to include at least one Formulation from each collection, as they target distinct aspects of skin health. The synergistic effect resulting from combining these formulations enhances their overall effectiveness. Depending on your specific skin concerns or type, you may discover that incorporating multiple Formulations from a single Collection is beneficial for achieving optimal results.

If you are new to RATIONALE, you can commence with an initial skincare prescription and gradually expand it to encompass one Formulation from each Collection, creating a comprehensive Essential Six Ritual. 

Begin this journey by scheduling a Virtual Consultation or visiting a Flagship to consult with an expert Skin Therapist and receive your initial prescription. Alternatively, take our online Skin Questionnaire to receive Priority Formulations tailored to your specific skin concerns.

For optimal skin health, we recommend choosing at least one Formulation from each Collection.

For optimal results, we recommend applying your Formulations in order of consistency, ranging from the lightest to the richest.

If using both #5 The GelCrème and #6 The GelCrème apply #6 The GelCrème before #5 The GelCrème. If you have more questions, you can chat to an online Skin Therapist, here.

Generally speaking, we do not recommend applying your PM Formulations in the AM. Nevertheless, there are specific exceptions to this rule, namely: #4 The Crème and #5 The Mask.

Yes. Depending on your specific skin concerns or type, you may discover that incorporating multiple Formulations from a single Collection is beneficial for achieving optimal results.