Lactobacillus/Solanum Lycopersicum Fruit Ferment Extract: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: July 1, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Lactobacillus/Solanum Lycopersicum Fruit Ferment Extract?

Lactobacillus/Solanum Lycopersicum Fruit Ferment Extract is a postbiotic ingredient made by fermenting ripe tomato fruit with the friendly bacterium Lactobacillus. During fermentation the tomato’s natural sugars, vitamins and antioxidants, including the well-known carotenoid lycopene, are broken down into smaller molecules and combined with peptides and amino acids released by the bacteria. This process can boost stability and skin compatibility while creating new soothing compounds.

Tomatoes have been valued in folk beauty routines for generations, but it was only in the last decade that brands began using controlled Lactobacillus fermentation to capture their benefits in a shelf-stable form. The surge of interest in probiotics and postbiotics for skin and hair care accelerated its adoption.

Manufacturing is straightforward: fresh tomato pulp is mixed with a selected Lactobacillus strain under food-grade conditions, allowed to ferment for several days, then filtered and lightly preserved. The resulting water-soluble extract is odorless to faintly fruity and can be added to both water-based and emulsion formulas.

You’ll often spot this ferment in lightweight hydrating serums, daily moisturizers, calming masks, anti-pollution sprays, leave-in hair conditioners and scalp treatments where a gentle antioxidant and conditioning boost is desired.

Lactobacillus/Solanum Lycopersicum Fruit Ferment Extract’s Cosmetic Benefits/Uses

This tomato ferment offers multiple benefits for skin and hair formulations:

  • Hair conditioning: the amino acids and natural sugars coat the hair shaft, improving softness, slip and shine while helping reduce static and breakage
  • Skin conditioning: its cocktail of postbiotic peptides, vitamins and antioxidants supports the skin barrier, delivers light hydration and soothes visible redness, leaving skin feeling smooth and refreshed

Who Can Use Lactobacillus/Solanum Lycopersicum Fruit Ferment Extract

This gentle ferment suits almost every skin type including dry, oily, combination, sensitive and mature skin because it is water based, light and non occlusive. The only group that should be cautious is anyone with a known tomato allergy since trace tomato proteins could still be present.

The ingredient is produced from tomatoes and Lactobacillus cultures without any animal derived additives so it is considered vegan and vegetarian friendly.

Current research shows no specific risks for pregnant or breastfeeding women when the extract is used topically at normal cosmetic levels. Still, this is not medical advice and anyone who is expecting or nursing should ask a qualified healthcare provider before adding new products to their routine just to be safe.

Lactobacillus/Solanum Lycopersicum Fruit Ferment Extract does not increase photosensitivity. Regular sunscreen use is always recommended during the day but there is no extra sun-related caution linked to this ingredient.

Potential Side Effects/Adverse Reactions

Individual responses to Lactobacillus/Solanum Lycopersicum Fruit Ferment Extract can vary. The points below outline potential but unlikely side effects assuming the formula has been properly produced and preserved.

  • Allergic reaction in tomato sensitive individuals itching, hives or swelling can occur if you are allergic to tomatoes or nightshade plants
  • Transient redness or stinging very sensitive skin may feel a mild tingle when the product is first applied
  • Contact dermatitis in rare cases an inflammatory rash can develop due to immune sensitivity to one or more components of the ferment
  • Folliculitis on the scalp poorly preserved leave-on hair products containing ferments may promote microbial overgrowth leading to small itchy bumps

If any persistent irritation or unusual reaction develops stop using the product and seek advice from a healthcare professional.

Comedogenic Rating

Rating: 0 / 5

This tomato ferment is water based, free of heavy oils and made up of small, bioavailable molecules that rinse or absorb easily so it is very unlikely to block pores. That makes it a good option for people who struggle with acne or frequent breakouts.

As always, the overall formula can change how pore friendly a finished product is so check the full ingredient list if congestion is a concern.

Summary

Lactobacillus/Solanum Lycopersicum Fruit Ferment Extract conditions skin and hair by delivering a blend of postbiotic peptides, amino acids, natural sugars, vitamins and the antioxidant lycopene. These components help smooth cuticles for softer glossier strands while calming and lightly hydrating the skin surface.

Although not yet a household name, its popularity is climbing thanks to the wider interest in probiotic driven beauty and the feel good familiarity of tomatoes. You will mostly find it in leave-on serums, light creams, masks and hair mists rather than in every lotion on the shelf.

The ingredient has an excellent safety profile with minimal risk for irritation except in those allergic to tomatoes. Still, skin is personal so it is wise to patch test any new product before adding it to your routine.

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