Lagerstroemia Indica Flower 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 Lagerstroemia Indica Flower Extract?

Lagerstroemia Indica Flower Extract comes from the bright crepe myrtle blossoms of the Lagerstroemia indica tree, part of the Lythraceae family. These showy flowers are rich in natural sugars, flavonoids and mild plant acids that help soften and smooth the skin when used in topical products.

The tree has long been admired in gardens across Asia and the southern United States for its vivid summer blooms. Over time formulators noticed that crushed petals left skin feeling supple and refreshed. This folk use led researchers to study the flower’s soothing properties in the lab, where they confirmed its value as a gentle skin conditioner. Cosmetic companies began adding standardized extracts of the petals to lotions and creams in the late 1990s as interest in botanical ingredients grew.

To make the ingredient, freshly harvested flowers are cleaned, dried then steeped in a mix of water and food grade solvents. The liquid is filtered and concentrated, yielding a clear to pale amber fluid packed with the flower’s water-soluble actives. A small amount of preservative is usually added to keep the extract stable.

You can now spot Lagerstroemia Indica Flower Extract in daily moisturizers, soothing face masks, after-sun gels, calming toners and many anti-aging serums that aim to boost skin softness without heaviness.

Lagerstroemia Indica Flower Extract’s Cosmetic Benefits/Uses

This flower extract is prized for one main reason in skincare.

As a skin conditioning agent it helps maintain smooth resilient skin. The natural sugars draw in moisture, while the mild acids encourage a soft surface feel. Regular use can leave the complexion looking fresh and well hydrated which makes the ingredient a helpful addition to products meant for dryness, rough texture or post-sun comfort.

Who Can Use Lagerstroemia Indica Flower Extract

This gentle flower extract suits most skin types including normal, dry, combination and even sensitive skin because it offers lightweight hydration without clogging pores or leaving a heavy film. Oily or acne-prone users usually tolerate it well too as the ingredient does not add excess oil.

The extract is plant derived with no animal by-products so it fits vegan and vegetarian lifestyles.

Current research shows no specific risk for pregnant or breastfeeding women when the ingredient is used topically at cosmetic levels. That said this is not medical advice and anyone who is expecting or nursing should run any skincare product past a doctor just to be on the safe side.

Lagerstroemia Indica Flower Extract is not known to cause photosensitivity, so it should not make skin more prone to sunburn. As always daily sunscreen is still recommended for overall skin health.

Potential Side Effects/Adverse Reactions

Reactions to topical Lagerstroemia Indica Flower Extract can vary from person to person. The points below list potential side effects but they are not the typical user experience. In well formulated products most people will not notice any problems.

  • Mild redness or flushing – usually short-lived and linked to very sensitive skin
  • Itching or tingling – may occur if the formula contains other actives that heighten skin reactivity
  • Localized rash – rare allergic response to natural pollen proteins remaining in the extract
  • Dry patches – possible if the product combines the extract with high alcohol content
  • Stinging on broken or freshly shaved skin – the mild plant acids can feel sharp on compromised areas

If you experience any persistent irritation discontinue use and consult a healthcare professional.

Comedogenic Rating

Rating: 0

Lagerstroemia Indica Flower Extract is water based, contains virtually no pore-clogging oils or waxes and is used at low concentrations, so it does not obstruct follicles. That makes it a safe choice for acne-prone or congestion-prone skin.

As always the overall formula matters more than a single ingredient. If the extract appears in a heavy cream packed with rich butters the final product could still trigger breakouts even though the extract itself is non-comedogenic.

Summary

Lagerstroemia Indica Flower Extract is mainly a skin-conditioning ingredient that hydrates, softens and soothes. Natural sugars act as humectants that pull moisture to the surface, gentle plant acids smooth rough patches and flavonoids lend mild antioxidant support.

While it is not the buzziest botanical on the market, formulators appreciate its lightweight feel and reliable performance so it pops up in a steady stream of moisturizers, toners and calming gels.

Safety data show a very low risk of irritation or allergy when used at cosmetic levels. Still, skin can react unpredictably so it is wise to patch test any new product that contains this or any other unfamiliar ingredient.

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