d'reena
The d'reena Journal

Skin science, treatments, and what actually works.

Notes from our therapists on the ingredients and treatments behind every facial — what they do, how they work, and why we choose them for your skin.

Treatments Explained

TeenSkin Treatment: What High Frequency and Cold Hammer Are Actually Doing

High frequency and cold hammer sound like serious equipment for a 45-minute teen facial, but one is a mild antibacterial and the other is pure thermal calming — and that restraint is exactly the point for still-developing skin.

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Peptides, Explained
Ingredients

Peptides, Explained

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Treatments Explained

How Caviar Restore Uses Ultrasound to Rejuvenate Mature Skin

Caviar Restore's headline ingredient isn't actually the interesting part — the ultrasound delivering it is, and here's what each one is actually contributing to mature, moisture-depleted skin.

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NeuroTouch Symmetry Serum: What “Neuroscience-Powered” Actually Means
Ingredients

NeuroTouch Symmetry Serum: What “Neuroscience-Powered” Actually Means

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Treatments Explained

What's Actually Happening During a Bio Cell Treatment

The freshwater sponge behind a Bio Cell Treatment isn't a gimmick ingredient — it's a genuine mechanical exfoliant, which is exactly why it behaves so differently from a chemical peel or a laser.

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Nanoinfusion and LED Light Therapy, Explained
Treatments Explained

Nanoinfusion and LED Light Therapy, Explained

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Treatments Explained

What's Actually Happening During an Oxygen Facial

The oxygen itself isn't really the mechanism — pressure and hydration are doing most of the work, which is a very different (and more useful) thing to understand before you book one.

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Hyaluronic Acid, Explained
Ingredients

Hyaluronic Acid, Explained

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Ingredients

Retinol, Explained

It's the most studied anti-ageing ingredient in skincare — here's what retinol is actually doing at the cellular level, and why delivery matters as much as the ingredient itself.

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