Citadel Skin Hydrating Serum + Multi-HA 30 ml pump bottle and box in the new packaging
Hydrating Serum + Multi-HA - 1.01 fl oz (30ml)
Hydrating Serum + Multi-HA - 1.01 fl oz (30ml)
Hand holding the 30 ml Citadel Skin Hydrating Serum pump bottle to show its size
Hydrating Serum + Multi-HA - 1.01 fl oz (30ml)
Hydrating Serum + Multi-HA - 1.01 fl oz (30ml)
Hydrating Serum + Multi-HA - 1.01 fl oz (30ml)
Hydrating Serum + Multi-HA - 1.01 fl oz (30ml)
COSMOS Natural99% natural originVegan

Hydrating Serum

30 ml / 1.01 fl oz · 76% Organic aloe · Two hyaluronic acids · Bisabolol

Rated 4.7 out of 54.7 · 6 reviewsSee the full ingredient list ↓

A lightweight, silky serum for morning and evening. An organic aloe base and two weights of hyaluronic acid help skin hold on to moisture, while bisabolol and cloudberry leave it feeling soft and comfortable. 99% of total ingredients are from natural origin.

  • 76% organic aloe leaf juice as the base
  • Two weights of hyaluronic acid help skin hold moisture
  • Bisabolol and rose flower water for a comfortable feel
  • Soft floral scent from natural essential oils
How would you like it?

Spend $75+ save $5 · $115+ save $15 · $155+ save $25 · $250+ save $40 · see routines

  • Free shipping
  • 30-day money-back · no need to send it back
  • COSMOS certified · Made in the EU
Day 1HydratedSkin feels soft and less tight after the first use.
Week 1Fresher-lookingSkin tends to look dewy and feel smooth under makeup.
Week 3+Comfortable every dayUsed twice daily, skin keeps feeling hydrated and comfortable.

Individual experiences vary.

How to use
  1. Cleanse Morning or evening, start with a gentle cleanser. Pat dry, leaving skin slightly damp.
  2. Apply 2–3 drops Press and pat into face and neck, then give it a moment to absorb.
  3. Seal with moisturizer or oil Follow with a moisturizer or the Facial Oil to seal in the hydration. It also works as a hydrating base under makeup.
  4. Use twice daily It can be used every morning and evening, including the morning after an AHA evening.
Key ingredients
Aloe Leaf Juice (76%)
Organic aloe is the base of the serum, in place of most of the water. Leaves skin feeling soft and refreshed.
Hydrolyzed Hyaluronic Acid + Sodium Hyaluronate
Two weights of hyaluronic acid that help skin hold on to moisture, so it feels plump and smooth.
Bisabolol
An organic chamomile-derived ingredient that helps skin feel calm and comfortable.
Cloudberry Fruit Extract
Organic Arctic berry extract, naturally rich in vitamins C and E.
Jojoba Oil and Rose Flower Water
Organic jojoba oil and rose flower water give the serum its silky, comfortable feel.
Full ingredient list (INCI)

Aloe Barbadensis (Aloe) Leaf Juice*, Simmondsia Chinensis (Jojoba) Seed Oil*, Glycerin**, Pentylene Glycol, Rosa Damascena (Rose) Flower Water*, Polyglyceryl-6 Stearate, Cetearyl Alcohol, Isoamyl Laurate, Aqua/Water, Betaine, Polyglyceryl-6 Behenate, Parfum/Fragrance, Cellulose, Caprylic/Capric Triglyceride, Xanthan Gum, Bisabolol*, Paeonia Lactiflora (Peony) Root Extract, Rubus Chamaemorus (Cloudberry) Fruit Extract*, Ascorbyl Palmitate, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate, Sodium Phytate, Tocopherol, Benzyl Alcohol, Alteromonas Ferment Extract, Phenethyl Alcohol, CI 77491 (Iron Oxides)****, Sodium Benzoate, Potassium Sorbate, Potassium Hydroxide, Glycolipids, Vanillin, Limonene***, Geraniol***, Coumarin***, Linalyl Acetate***, Linalool***

*Ingredients from organic farming · **Made using organic ingredients · ***From natural essential oils · ****Pure mineral pigments

Certification & values
  • 99%Natural origin99% of total ingredients are from natural origin.
  • 25%Organic25% of total ingredients are from organic farming, including aloe, jojoba, rose water and cloudberry.
  • 100%VeganNo animal-derived ingredients.

Certified COSMOS Natural by ECOCERT. Formulated without parabens. Lightly scented (soft cotton and flowers). pH 5.0–5.3. Made in the EU in an FDA-registered, GMP-certified facility.

Shipping & returns
Free shipping on every order. If it isn't right for your skin, contact us within 30 days for a full refund.

The formula in numbers

Hydration in two weights, with a soft finish

76% organic aloe

The serum is built on organic aloe leaf juice rather than plain water, for a soft, refreshing feel.

Two weights of hyaluronic acid

Hydrolyzed hyaluronic acid and sodium hyaluronate are humectants of different molecular weights. Together they help skin hold on to moisture and feel smooth.

Bisabolol

A chamomile-derived ingredient that helps skin feel calm and comfortable, morning and evening.

Cloudberry and peony

Organic cloudberry fruit extract, naturally rich in vitamins C and E, and peony root extract. Percentages from the manufacturer's formula specification.

Complete the routine

Pairs well with

All-In-One Facial OilPress the Facial Oil over the serum for extra softness. Rated 4.7 out of 54.7 (6)
$52

Save with a routine

Hydrating Serum is part of these routines

All routines
For runners & training days · 3 products The Active Routine
$105.00 $120.00 Save $15 as a set
Full routine · 6 products The Complete Routine
$245.00 $285.00 Save $40 as a set
Simple routine · 3 products Everyday Essentials
$115.00 $130.00 Save $15 as a set

Reviews

What customers say

FAQ

Good questions

Which skin types is it for?
It is made for all skin types and is light enough for twice-daily use. It contains a light fragrance from natural essential oils, so if your skin is sensitive, patch test first or start with our fragrance-free Sensitive Skin Moisturiser.
When might I notice a difference?
Skin usually feels more hydrated and less tight from the first use. A fresher-looking complexion tends to follow with a week or two of regular use. Results vary from person to person.
Can I wear it under makeup?
Yes. It absorbs quickly and works as a hydrating base, so foundation goes on smoothly.
Can I use it with other products?
Yes. Use it in the morning with the Peptide Renewal Serum at night, or the morning after using the AHA Peeling Concentrate.
Where is it made?
In the EU, in an FDA-registered, GMP-certified facility.
What is your return policy?
If it isn't right for your skin, email us within 30 days of delivery for a full refund. You don't need to send it back.

Hydration, morning and night.

76% organic aloe, two hyaluronic acids and bisabolol in a light serum certified COSMOS Natural. Try it for 30 days; if it isn't right for you, get a full refund and keep the bottle.