Face Serums | Hydrate, Brighten and Protect Your Skin

Serums

Discover RATIONALE’s hydrating serum collection, advanced formulations designed to deeply replenish, plump, and restore radiant skin with every drop.

.js-container { display: none !important; } .accordion h3 { font-size: 15px; } .collection__products--main { width: 100%; } .collection__product-price { text-align: center } .collection__product-details form { width: 100%; }

#1 The Strengthening Serum

£76.00

#2 The Serum

£135.00

#3 The Brilliance Tinted Serum SPF50+

£78.00

Suited to

["All skin"]

#5 The Milk Concentrate

£142.00

#5 The Refining Serum

£129.00

The Radiance Booster Serum

£106.00

Suited to

["All skin"]

The Protect Daily Duo

£243.90 £271.00

The Antioxidant Brightening Duo

£258.30 £287.00

The Anti-Ageing Trio (Resilient)

£354.45 £417.00

The Anti-Ageing Trio (Sensitive)

£365.50 £430.00

The Sensitive Skin Trio

£310.25 £365.00

The Discovery Travel Kit

£328.00

Frequently Asked Questions

What is a serum?

Targeted and transformative, serums offer a concentrated delivery of active ingredients to the skin. Known for their efficacy, serums are often used to help reduce the appearance of specific skin concerns.

When should I be using serums?

We have a suite of serums designed specifically for use in the morning or the evening. For daily protection, we offer #1 The Strengthening Serum, #2 The Serum and #3 The Brilliance Tinted Serum SPF50+. For nightly repair, we offer #5 The Refining Serum and #5 The Milk Concentrate.

What is the difference between a serum and a crème?

It’s all in the delivery system. Serums typically target the deeper layers of the skin, whereas crèmes are typically designed to treat the superficial layers of the skin.

What is the best order to apply serums?

#1 The Strengthening Serum should be applied on clean, dry skin, as the first step in your morning ritual.

#2 The Serum should be applied after #1 The Strengthening Serum and before your daytime hydrator and SPF.

#3 The Brilliance Tinted Serum SPF 50+should be applied as the final step in your morning ritual before Beautiful Skin Superfluid.

#5 The Refining Serum should be applied in the evening, after cleansing and before formulations from #6 The Renewal Collection.

#5 The Milk Concentrate should be applied in the evening, after cleansing and before formulations from #6 The Renewal Collection.

What is the difference between oil-based and water-based serums?

Whilst oil-based serums contain oil-soluble active ingredients, water-based serums contain water-soluble active ingredients.

Those experiencing signs of dryness will benefit from replenishing their skin with oil-based formulations. On the other hand, those experiencing normal or combination skin are best suited to water-based formulations.

What is the key difference between #1 The Strengthening Serum and #2 The Serum?

#1 The Strengthening Serum boasts a proprietary Complex of B-Group Vitamins to intuitively nurture skin resilience and enhance skin calmness.

#2 The Serum features an Antioxidant Complex to fortify skin against the appearance of oxidative stress while cultivating a healthy brilliance and even tone.

Depending on your skin type, concerns and goals, both formulations can be used as part of your daily ritual. If unsure, seek expert guidance from our team of Online Skin Consultants.

What is the difference between #5 The Refining Serum and #5 The Milk Concentrate?

Whilst both formulations support a youthful and acidic pH level, #5 The Refining Serum has been formulated with our proprietary Complex of Hydroxy Acids for those with resilient skin. On the other hand, #5 The Milk Concentrate is a gentler alternative; boasting an innovative Peptide and Amino Acid Complex.