Pai Skincare London | Powering your good skin days

Instant Kalmer™ Serum

Instant Kalmer™ Serum - Main image
$29.4 $49 In stock

Category: Urticaria

FROM DISTRESSED TO DE-STRESSED

Calm angry, reactive skin with our lightweight ceramide serum, built specifically for sensitive skin that's had enough.

Most "ceramide" serums use a single synthetic ceramide and call it a day. Ours contains three plant-derived ceramide types (2, 3 and 8) that are structurally matched to the ones your skin actually produces, paired with a purpose-built delivery system to carry them deeper into the barrier where they're needed. The result: genuine barrier repair, not just a ceramide name-drop on the label.

Sea Aster calms reactivity and stimulates your skin's own lipid production, while Schisandra berry tackles inflammation at the source. Mondo Grass root extract goes further, reducing the frequency of flare-ups over time so your skin stays calmer for longer.

Fragrance-free, essential oil-free and independently tested on sensitive skin: 84% reported calmer skin, 82% felt relief from discomfort on application. While most serums are water-based, this one also contains omega 6-rich Safflower Oil to soften and replenish. Lightweight, non-sticky, and genuinely kind to skin that reacts to everything.

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.8 / 5 · 8 reviews)

Ryan ★★★★★

I’ve tried so many "gentle" serums that still made my skin burn, so the fact that this one is actually lightweight and didn’t trigger a single flare-up is a win in my book. The ceramide formula calms my reactive patches within a few minutes of applying, and it layers nicely under my moisturizer with

Riley ★★★★★

Within a week of using this, the angry red patches on my arms had visibly calmed down, and it’s the first lightweight serum that doesn’t leave that sticky film on my skin. The ceramide blend sinks in fast and my reactive skin finally feels like it can just breathe without flaring up.

Jacob I. ★★★★★

I’ve tried plenty of serums that claimed to help reactive skin, but this is the first one where my hives actually calmed down within a day. The ceramide blend feels substantial yet never sticky, even when I layer it under my moisturizer. My face isn’t blotchy by noon anymore, which is a huge win for