Ingredients

A pharmacist-led guide to cosmetic actives. Every ingredient explained with scientific evidence: what it does, how to use it and what to combine it with.

TEST Pillar Hidratantes (BORRAR)
cluster:hidratantes
TEST Pillar Hidratantes (BORRAR)
Subtítulo de prueba: qué es la hidratación cutánea, cómo se clasifican los activos hidratantes y cómo elegirlos según...
Published: 30 May 2026
Laminaria extract: when it truly fits into a soothing routine
antioxidant
Laminaria extract: when it truly fits into a soothing routine
An interesting marine active for sensitive, dehydrated or altered skin, with more soothing than spectacular benefits.
Published: 25 May 2026
Ruscus extract: when does it make sense for skin with redness
anti-inflammatory
Ruscus extract: when does it make sense for skin with redness
An interesting botanical extract for soothing and comforting formulas, although its real role depends heavily on the ...
Published: 25 May 2026
Ivy extract in cosmetics: when it can be beneficial
anti-inflammatory
Ivy extract in cosmetics: when it can be beneficial
It's not one of the most decisive botanical extracts, but it can fit into soothing and antioxidant formulas with real...
Published: 25 May 2026
Rosemary extract in cosmetics: benefits and ideal applications
antimicrobial
Rosemary extract in cosmetics: benefits and ideal applications
Not all botanicals are soothing. Rosemary extract can provide antioxidant and astringent action, but it's important t...
Published: 25 May 2026
Ethyl macadamiate: light emollience and silky finish
antioxidant
Ethyl macadamiate: light emollience and silky finish
A light emollient that improves formula spreadability and leaves skin feeling soft, with less greasy residue than oth...
Published: 25 May 2026
Hotflux TM in cosmetics: localized heat, when it fits and when it doesn't
anti-inflammatory
Hotflux TM in cosmetics: localized heat, when it fits and when it doesn't
A warming ingredient that might make sense in body formulas, but it's not for every skin type or every area.
Published: 25 May 2026
Quina extract: when it's suitable for oily skin
acne
Quina extract: when it's suitable for oily skin
A botanical extract with a sebum-regulating profile that can be effective in formulas for combination or oily skin, w...
Published: 25 May 2026
Bamboo Stem Powder: when it fits into a facial exfoliation
exfoliant
Bamboo Stem Powder: when it fits into a facial exfoliation
Plant-based particles for mechanical exfoliation: I'll explain when they can make sense and when I prefer other options.
Published: 25 May 2026
Ginseng extract: when it adds value to your routine
antioxidant
Ginseng extract: when it adds value to your routine
An interesting botanical active when seeking antioxidant support and a revitalizing effect, but it's important to adj...
Published: 25 May 2026
Fucus extract: when it makes sense in cosmetics
antioxidant
Fucus extract: when it makes sense in cosmetics
An interesting marine active ingredient for its moisturizing and antioxidant profile, although its more ambitious eff...
Published: 25 May 2026
Topical Probiotics: When They Make Sense in Your Routine
anti-inflammatory
Topical Probiotics: When They Make Sense in Your Routine
They don't do the same thing as an oral probiotic, but they can help soothe and strengthen the barrier in certain ski...
Published: 25 May 2026

What are cosmetic active ingredients

Cosmetic active ingredients are the components responsible for making a product do what it promises. Unlike excipients (which provide texture, preservation or fragrance), actives are the ones that produce a real, measurable effect on the skin: stimulating collagen, inhibiting melanin, strengthening the skin barrier or accelerating cell renewal.

The problem is that most brands do not explain which actives they use, at what concentration or why. This pharmacist-led guide to cosmetic ingredients was created to change that: each article analyses an active ingredient with the available scientific evidence, without exaggeration or empty promises.

How to use this ingredient guide

Each article in this guide includes a summary card with the INCI name, effective concentration, potency, recommended skin type, routine step and compatibility with other actives. You will also find information on use during pregnancy and verifiable scientific references.

All content is written and reviewed by a licensed pharmacist with over 20 years of experience. This is not a standard cosmetic ingredient list — it is a professional guide designed to help you make informed decisions about your skincare.

Arancha Grediaga
Author and reviewer
Pharmacist · Dermocosmetics Expert · COFA License #6497
+20 years of community pharmacy experience · Technical Lead at EVUE Cosmetics