Fragrance

Raspberry Ketone

INCI: RASPBERRY KETONE

Reviewed by Emma · Last updated 14 Aug 2026

Also known as: Raspberry Ketone

A fragrant compound from raspberries with emerging research into skin elasticity and sensory nerve activation

Best For Skin Types

All

Addresses

Elasticity

Usage Frequency

As tolerated

What Is Raspberry Ketone?

Raspberry ketone is an aromatic compound naturally found in red raspberries. In skincare, it functions primarily as a fragrance and skin conditioning agent, contributing to product scent and sensory feel.

The ingredient has drawn research attention because its chemical structure resembles capsaicin, the compound responsible for chilli pepper's heat. This structural similarity has prompted investigation into whether it might trigger similar biological responses in skin.

How It Works

Raspberry ketone may activate sensory nerve endings in skin, which could trigger the release of calcitonin gene-related peptide (CGRP), a signalling molecule involved in skin physiology. In theory, this activation might increase production of insulin-like growth factor-I (IGF-I) in the dermis, a protein involved in skin renewal and elasticity.

However, this mechanism is derived primarily from laboratory and animal studies. The extent to which this occurs in human skin at typical cosmetic concentrations remains unclear.

Clinical Evidence & References

A small body of research has explored raspberry ketone's effects on skin elasticity and hair growth in human volunteers, with some studies reporting modest improvements. These findings are interesting but preliminary, and the number of participants in human trials has generally been limited.

It is important to note that raspberry ketone has also been associated with contact leukoderma (depigmentation) in occupational settings at higher concentrations. Whilst this is not a typical concern in cosmetic products, it indicates the ingredient warrants careful formulation consideration and that safety profiles depend heavily on concentration and use context.

How to Use

Raspberry ketone is uncommon in skincare formulations. If used, it is typically included at low levels for fragrance and conditioning rather than as an active treatment. There is no established optimal frequency; use according to the product instructions.

Safety & Precautions

Generally well-tolerated at cosmetic concentrations. However, occupational exposure and laboratory data suggest potential for skin irritation or depigmentation at higher levels, so formulation concentration is important.

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