Mo Constantine: The Inventor Who Changed Bathing and Built the Lush Beauty Empire

Elevate New Editorial Team41 minutes agoLast Updated: July 14, 2026

Mo Constantine OBE is a British cosmetics inventor, manufacturing leader and businesswoman. Her full name is Margaret Joan Constantine. She is best known as one of the six founders of Lush and the creator of the bath bomb, one of the most successful bath products ever made.

Her work has shaped modern cosmetics in many ways. She helped create solid shampoo, supported packaging-free beauty products and developed handmade manufacturing methods that could work across an international company. She also built a family business with her husband, Mark Constantine, while raising three children who later developed careers connected with Lush.

Her career proves that a simple idea can change an entire industry. What began with experiments in a garden shed became part of a global beauty company with hundreds of shops.

Who Is Mo Constantine?

Mo Constantine was born in June 1953. She is 73 years old as of July 2026. Official company records confirm her birth month and year, British nationality and residence in the United Kingdom. She began her professional life as a legal secretary. Her career later moved into cosmetics, product creation and manufacturing. She developed a practical understanding of ingredients and learnt how to turn new formulas into products that could be made safely and consistently.

Her greatest strength has always been invention. She does not simply think of beauty products as creams, liquids or soaps. She looks at how a product can be changed, shaped and improved.

Mo Constantine’s Early Cosmetics Career

Her journey into beauty began through the cosmetics businesses created by Mark Constantine and beauty therapist Liz Weir, who later became known as Liz Bennett. Their early operation developed hair and skincare products and supplied formulas to Anita Roddick’s Body Shop. As the business grew, Mo became involved in formulation, production and practical product development.

This early period taught her how ingredients behaved during mixing, pressing, drying and storage. It also helped her understand the importance of making products that were effective without using wasteful packaging.

Working Before the Creation of Lush

The team later developed Cosmetics To Go, a colourful mail-order beauty company. It sold imaginative bath, hair and body products through detailed catalogues. Cosmetics To Go became popular with customers, but the company faced serious financial and operational problems. Its prices did not always cover the full cost of production, packing and delivery. The business eventually collapsed.

The failure was painful, but Mo, Mark and their colleagues did not leave the cosmetics industry. They used the lessons from that experience to build a stronger company. That new business became Lush.

Mo Constantine Invented the Solid Shampoo Bar

Before the bath bomb became famous, Mo helped create another important product: the solid shampoo bar. In 1987, she worked with cosmetic chemist Stan Krysztal to develop a concentrated shampoo in solid form. Traditional shampoo contains a large amount of water and is usually sold in a plastic bottle. Their product removed much of the water and formed the active ingredients into a compact bar.

A solid shampoo bar could provide many washes while using less packaging. It was also lighter to carry and easier to transport than bottled shampoo.

Why the Shampoo Bar Mattered

The invention helped establish an idea that later became central to Lush: cosmetics did not always need bottles, tubs and heavy boxes. Solid products could reduce plastic use while still offering strong performance. This approach later influenced soaps, facial oils, body products and other packaging-free creations. The shampoo bar was not simply a different shape. It changed the way customers thought about everyday haircare.

How Mo Constantine Created the Bath Bomb

Mo invented the original bath bomb in 1989 while experimenting in a garden shed in Dorset. Her idea came partly from watching effervescent tablets dissolve in water. She combined sodium bicarbonate, citric acid and essential oils. When the mixture entered bath water, it created a fizzing reaction and released fragrance.

The earliest versions were simple tablet-shaped products called Aqua Sizzlers. They included lavender and were designed to create a relaxing bath without causing discomfort to sensitive skin. She also wanted a product that could be enjoyed by her children. Family life, sensitive-skin needs and creative play all influenced the invention.

From Simple Tablets to Colourful Bath Art

The first designs were basic, but the product soon became more imaginative. New versions included different scents, shapes, colours and skin-softening ingredients. Later bath bombs added layers that dissolved at different speeds. Some produced foam, patterns or bright streams of colour across the water. This style became known as bath art.

The bath bomb gained trademark protection on 27 April 1990. Lush later chose that date for World Bath Bomb Day. The company has developed hundreds of bath-bomb designs since Mo’s first experiment. Global sales have reached hundreds of millions, making the product one of the most recognisable creations in the beauty industry.

Mo Constantine and the Founding of Lush

Lush was established in Poole in 1995 by six founders: Mark Constantine, Mo Constantine, Rowena Bird, Helen Ambrosen, Liz Bennett and Paul Greeves. The first shop opened on Poole High Street. The founders wanted to make fresh cosmetics with strong scents, careful ingredient choices and limited packaging. They also believed that products should be created without animal testing and should offer genuine value. Customers would pay for the quality of the contents rather than costly containers or decorative boxes.

Mo Constantine’s Role at Lush

Mo became a co-founder, product inventor, company director and manufacturing leader. Her work focused on turning creative ideas into products that could be handmade in larger numbers. This required careful decisions about ingredients, production methods, equipment, quality and staff training.

She helped protect the handmade character of the company as it grew into an international business. Bath bombs, soaps and other products continued to be mixed, shaped and finished by production teams rather than being made only by automated machines.

Supporting Women in Manufacturing

She has also encouraged women to develop careers in manufacturing. Her leadership has helped staff gain practical skills and move into positions with greater responsibility. She believes that makers should remain close to product inventors. When production teams understand the creative purpose of a product, they can help improve its texture, colour, shape and performance.

Her Active Business Career

Mo has held directorships across Lush and related companies for many years. Her active business roles include positions connected with Lush Ltd, Lush Cosmetics Limited, Lush Manufacturing Limited, Cosmetic Warriors Limited and Cosmetics To Go Limited. She is also linked with B Never Too Busy to Be Beautiful Limited, Investment 1234 Ltd and Keep It Fluffy Limited.

Some of these companies manage manufacturing, brands, investments or other parts of the wider Lush business structure. Her longest active Lush directorship began in June 1994, before the first branded Lush shop opened.

Mo Constantine’s Husband

Mo is married to Mark Constantine OBE, the co-founder and chief executive of Lush. The couple met when they were young and married in 1973. Their relationship has lasted through more than five decades of family life, product creation, business success and financial setbacks.

Mark began his career in hairdressing and trichology. He later became a perfumer, product inventor and business leader. Mo focused strongly on manufacturing, bath products and solid cosmetics. Their different skills helped create a strong business partnership. They also share an interest in ethical buying, reduced packaging, independent ownership and opposition to animal testing. Both received OBEs in the 2011 New Year Honours for services to the beauty industry.

Mo Constantine’s Children

Mo and Mark Constantine have three children: Simon, Jack and Claire Constantine.

Simon Constantine

Simon became a perfumer and ethical buyer. He spent many years creating Lush fragrances and sourcing ingredients through responsible partnerships. He later co-founded ånd fragrance, a perfume brand built around careful sourcing and support for communities and ecosystems. He also restored Careys Secret Garden in Dorset.

Jack Constantine

Jack became a product inventor and digital leader at Lush. He learnt to make bath bombs from his mother and later helped develop more complex products with layers, colours and visual effects. He also became Lush’s Chief Digital Officer and created ethical digital principles focused on privacy, open-source software and responsible technology.

Claire Constantine

Claire developed her career through Lush retail. She began as a sales assistant before managing shops in Covent Garden and Oxford Street. She later became UK and Ireland Retail Director and then Group Retail Director. Claire has also worked on product ideas and has created beauty content with her mother.

Mo and Mark also have grandchildren. A family feature published in 2022 stated that they had 11 grandchildren.

Mo Constantine’s Net Worth

Her individual net worth has not been confirmed separately. In 2025, Mark and Mo Constantine had an estimated combined wealth of £249 million. Most of this value came from their controlling ownership of Lush and related assets.

Their fortune should not be treated as cash held in a bank account. Lush is a private company, so wealth estimates depend on company performance, ownership levels, property, debt and business valuations. The couple have kept Lush privately controlled while also giving employees an ownership stake in the company.

Charity and Conservation Work

Mo became a trustee of Birds of Poole Harbour in March 2023. The charity supports bird conservation, education and wildlife awareness in the Poole Harbour area. Her role fits closely with the Constantine family’s interest in nature and birds. Mark co-founded The Sound Approach, a project devoted to bird calls and sound-based study. The family’s work therefore connects cosmetics, business, conservation and environmental learning.

Mo Constantine’s Lasting Legacy

Mo Constantine changed modern bathing by creating a product that brought fragrance, colour and play into the bathroom. Her work on solid shampoo also helped make packaging-free beauty products practical long before plastic waste became a major global concern.

She helped build Lush from a small Poole business into an international company while keeping invention and handmade production at its heart. Her legacy rests on practical creativity. She took simple ingredients and created new product forms that millions of people now recognise. She is not only the wife of a successful businessman. She is a founder, inventor and manufacturing leader whose ideas helped transform the beauty industry.

FAQs

1. Who is Mo Constantine?

Mo Constantine OBE is a British cosmetics inventor, manufacturing leader and businesswoman. Her full name is Margaret Joan Constantine. She is best known as a co-founder of Lush and the inventor of the bath bomb.

2. How old is Mo Constantine?

Mo Constantine was born in June 1953. She is 73 years old as of July 2026. Her exact day of birth has not been confirmed through a dependable source.

3. Who are Mark and Mo Constantine?

Mark and Mo Constantine are the husband-and-wife team behind Lush. They married in 1973 and later co-founded the cosmetics company in Poole with Rowena Bird, Helen Ambrosen, Liz Bennett and Paul Greeves.

4. How many children does Mo Constantine have?

Mo Constantine and her husband, Mark Constantine, have three children: Simon Constantine, Jack Constantine and Claire Constantine. All three have built careers connected with Lush, fragrance, retail, product invention or digital leadership.

5. What is Mo Constantine’s role at Lush?

Mo Constantine is a Lush co-founder, product inventor, director and manufacturing leader. She created the original bath bomb and helped develop the solid shampoo bar, while also shaping the company’s handmade production methods.

6. What is Mo Constantine’s net worth?

Mo Constantine’s individual net worth has not been confirmed. She and Mark Constantine had an estimated combined wealth of £249 million in 2025, mainly because of their controlling ownership of Lush.