Dermalogica Circular Hydration Serum Jumbo 59ml

1. Apply morning and night after cleansing and toning, before moisturiser.

2. Use 4-6 drops - enough to cover the face and neck for most skin types. A little goes a long way.

3. Smooth over clean skin using gentle upward strokes. No need to massage vigorously; it absorbs quickly.

4. Follow with your moisturiser to seal in hydration. In the morning, finish with SPF. 

Does not need to be washed off - leave it on and layer over it. Can be layered under makeup without pilling or affecting wear.

Where This Fits in Your Routine

The standard Dermalogica routine follows: cleanse, tone (optional), treat, moisturise, protect. This serum sits in the treat step. It goes on after any water-based toner or essence and before your moisturiser. If you're using other serums in the same routine, apply the most lightweight first - typically a vitamin C or active serum before this one, or this one first if it's the thinnest in your line-up. In the morning, the final step is always SPF.

What to Expect

The watery-gel texture absorbs immediately and skin feels more comfortable and less tight within minutes. The longer-term benefit - a more plump, even, and hydrated-looking complexion - builds with consistent daily use. Clinical testing showed skin hydration maintained for 10+ hours after application. That said, no serum replaces moisture lost through lifestyle factors like low water intake, central heating, or high-SPF environments; think of this as the skincare half of keeping skin comfortable.

Products That Pair Well

This serum is designed to sit underneath a moisturiser rather than replace one. For dry or dehydrated skin, pair it with a richer cream like the Dermalogica Skin Smoothing Cream or Intensive Moisture Balance. For normal to combination skin, a lighter moisturiser like the Active Moist works well. In the morning, follow with a broad-spectrum SPF - daily sun protection is the most effective long-term step for maintaining how skin looks over time. If you're using a vitamin C or retinol serum in your routine, add the Circular Hydration Serum on top to help skin feel comfortable and hydrated around those actives.

Sensitive Skin, Allergies and Medical Conditions

The serum is generally well tolerated and suitable for sensitive skin. However, it does contain botanical essential oils (bergamot, grapefruit, lemon, sandalwood, jasmine, orange, cedarwood, cypress, rosemary) which may not suit those with known sensitivities to fragrant botanicals. If your skin is reactive, patch testing on a small area first is sensible. Anyone managing a diagnosed skin condition should speak to their pharmacist or GP before starting a new serum. For anyone who is pregnant or breastfeeding, speak to your pharmacist before introducing new actives including lactic acid.

Frequently Asked Questions

What skin types is the Dermalogica Circular Hydration Serum suitable for?

All skin types. Dehydration can affect oily, dry, combination, and sensitive skin equally, and the lightweight gel texture means it doesn't feel heavy or greasy on any of them. Those with known sensitivities to fragrant botanicals should patch test first.

What is the difference between the 30ml and 59ml sizes?

Same formula, different volume. The 59ml jumbo works out at 26% less per ml than the 30ml, making it the better-value option if you're using this serum daily morning and night.

What does polyglutamic acid do in this serum?

Polyglutamic acid is a large molecule derived from fermented soy. It sits on the skin's surface rather than penetrating it, forming a light film that helps reduce moisture evaporation. It works alongside hyaluronic acid rather than competing with it - HA draws moisture in, PGA helps keep it there.

Is there fragrance in the Dermalogica Circular Hydration Serum?

There are no artificial fragrances. The serum does have a natural scent from botanical essential oils including bergamot, jasmine, and sandalwood, which are included as part of the formula rather than added for fragrance purposes. If you have a known sensitivity to fragrant botanicals, patch test before use.

Can I use this serum if my skin is oily or blemish-prone?

Yes. Oily skin can still be dehydrated - lack of water and excess oil are separate issues. The gel texture is lightweight, absorbs quickly, and doesn't leave any heaviness or shine. It's free from mineral oil and won't feel greasy.

Where can I buy the Dermalogica Circular Hydration Serum in Ireland?

You can buy it directly from dpharmacy.ie with fast delivery across Ireland. The 59ml jumbo size is available here alongside the full Dermalogica range.

Can I use this with other Dermalogica serums?

Yes. Apply the most lightweight serum first. If you're using a vitamin C, niacinamide, or active booster in the same routine, apply that first, then the Circular Hydration Serum on top. Finish with your moisturiser.

Is this serum safe to use during pregnancy?

The serum contains lactic acid (an AHA) and botanical essential oils. While neither is typically considered high risk topically, if you are pregnant or breastfeeding, speak to your pharmacist or GP before introducing any new actives into your routine.

A Few Things to Know

The serum is generally well tolerated but patch testing is sensible for reactive or allergy-prone skin given the botanical essential oils. Avoid direct contact with eyes. Use SPF daily when using any AHA-containing product, as lactic acid can mildly increase sun sensitivity with regular use. Store at room temperature, away from direct sunlight. Check the period-after-opening symbol on the packaging for shelf life after first use.