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Two witches brewing a spell in a cauldron

Feature

From flying ointments to healing herbs: the forgotten chemistry behind historical witchcraft practices

The unusual concoctions of village witches have historically been dismissed as nonsense hocus pocus – but is this the whole story? Victoria Atkinson investigates the chemistry behind the myth and whether there was more to witchcraft than ritual and superstition

Pads and cotton buds with makeup that has been removed

Feature

Consumers question safety of parabens and PFAS in personal care products amid health concerns

Growing research into cosmetic ingredients has been raising safety concerns among consumers. Bárbara Pinho explores the future of safer chemistry amid the ‘clean beauty’ trend 

Medicines

Business

Pharma sector jolted by unpredictable US tariffs policy

Firms face tough decisions amid Trump’s threatened taxes on pharmaceutical imports and ‘capricious’ approach to tariffs

Donald Trump

News

Trump’s latest rule on research grants sidelines scientific merit and adds bureaucracy, academic groups warn

A new White House directive will see political appointees vet federal research funding decisions

Structure

Research

Molecular motor stitches together catenane rings

The light-powered system produces interlocked rings, without the need for templating strategies

Sad liver

Liver toxicity remains an unpredictable hurdle for medicinal chemists

By

The liver’s complex role in metabolising drugs makes it both a critical consideration and potential stumbling block 

Argentina protest

Deadly fentanyl contamination exposes drug safety challenges

By

Bacterial conatmination in medical fentanyl has killed at least 51 people in Argentina, highlighting pressures on generic drugmakers

Mental map streamlined into two steps

Ask probing questions to work effectively in diverse teams

By

Sometimes, what you really want may not be what you say you want

Fountain pen nib, writing

Letters: September 2025

By

Readers discuss negative results, chemistry cold spots and more 

The clean beauty movement highlights wider challenges in balancing chemical risks and benefits

By

The ‘clean beauty’ movement exemplifies broader challenges in how we evaluate chemical safety, balancing risks against benefits while avoiding regrettable substitutions.

The conceptual challenge of consumer safety

By

Understanding causation can motivate product improvements

Ure’s steam bath

By

A heating device from a fan of heated disputes

Matteo Tardelli with baby

Careers

Navigating parenthood and the return to the bench: A paternal perspective

Advice for how to combine fatherhood with a career in research

Anglo-Saxon coins

Research

Tale of Britain’s post-Roman economic crash overturned by ancient metal pollution discovery

Analysis points to metal-working industry continuing long after Romans left

Feature

From flying ointments to healing herbs: the forgotten chemistry behind historical witchcraft practices

The unusual concoctions of village witches have historically been dismissed as nonsense hocus pocus – but is this the whole story? Victoria Atkinson investigates the chemistry behind the myth and whether there was more to witchcraft than ritual and superstition

Careers

Comic book chemistry

The scientists using visual storytelling to communicate their work – and how you can do it too

Opinion

Ask probing questions to work effectively in diverse teams

Sometimes, what you really want may not be what you say you want

Sponsored

Matteo Tardelli with baby

Navigating parenthood and the return to the bench: A paternal perspective

Advice for how to combine fatherhood with a career in research

Understanding science comics

Comic book chemistry

The scientists using visual storytelling to communicate their work – and how you can do it too

Fountain pen nib, writing

Letters: September 2025

Readers discuss negative results, chemistry cold spots and more 

A yellow paper plane flies away from a formation of white ones

Establishing your independent research career

Writing grant proposals is an important skills to develop – and there is plenty of support you can seek