SKIN CARE
Algae + rice active redefining skin hydration
Marisa Ferré, Siham Bouhrir - Provital
Driven by the belief that caring for the planet is synonymous with caring for people, Provital found inspiration in the timeless ingenuity of the Great Wall of China, a symbol of enduring protection. This ancient wonder was constructed using a remarkable technique that incorporated amylopectin-rich glutinous rice flour into its mortar, creating a fortified defence system to safeguard the empire’s territories during the Ming Dynasty (1368-1644). Modern research has since uncovered that
adding amylopectin to mortar forms a unique organic-inorganic compound, with calcium carbonate as the inorganic component. This combination results in extraordinary strength, flexibility, enhanced water retention, and minimized shrinkage during curing. Hydrafence™, hereafter described as the
active ingredient, harnesses this powerful natural innovation. It is a moisturizing active and skin barrier enhancer, utilizing the hydrocolloid matrix of rice amylopectin to enable the sustained release of a calcium-rich fraction derived from Lithothamnion calcareum algae. New groundbreaking research has proven,
more than ever, that the active ingredient is a truly iconic active ingredient. These remarkable results further solidify its position as a revolutionary solution for enhancing skin smoothness, hydration, and protection across diverse skin types.
Science with conscience The development of this active ingredient was driven by the core principles of the 17 United Nations Sustainable Development Goals, with particular focus on SDG 2 (Zero Hunger) and SDG 12 (Responsible Consumption and Production). To achieve this, a byproduct from the rice refining process was utilized, supporting the circular economy of one of the world’s most vital food sources: rice. Amylopectin is a naturally occurring,
branched biopolymer found in the starch of most green plants. This versatile compound is uniquely capable of forming a moisturizing hydrocolloid matrix, which serves as an effective carrier for active substances. Once incorporated, these substances can be released gradually in a controlled, sequential manner, maximizing their effectiveness and extending their duration of action. For this application, the Oryza sativa
var. glutinosa variety of rice was chosen due
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These benefits are attributed to the
rice’s ability to enhance viscosity, forming a protective, insulating, and buffering barrier that soothes and shields tissues. The long-standing historical significance and inherent functional properties of this rice variety make it an ideal candidate for modern applications that require natural, biopolymer-based solutions. Additionally, Lithothamnion calcareum, a
Figure 1: Inspiration of the key aspects of the 17 United Nations Sustainable
Development Goals: Zero Hunger and Responsible Consumption and Production
to its notably viscous and glutinous starch, which is especially rich in amylopectin. This particular variety of rice boasts a rich history, first cultivated in Asia over 8,000 years ago and introduced to the Mediterranean around 800 B.C. Over centuries, it has become a beloved ingredient in Mediterranean cuisine, celebrated for its distinct texture and versatility. Historically, husked rice from this variety has
been valued for its medicinal and functional benefits. Its high starch content has been used to relieve gastrointestinal discomfort and provide localized anti-inflammatory effects.
species of algae found in maerl beds, plays a crucial role in supporting marine biodiversity and maintaining the proper pH levels in the ocean. This ecologically significant algae is harvested through sustainable methods in accordance with the OSPAR Convention—the Convention for the Protection of the Marine Environment of the North-East Atlantic.
Relationship between calcium, barrier function and hydration The skin’s ability to maintain hydration is closely tied to the integrity of its barrier function. The stratum corneum, the outermost layer of the epidermis, acts as a vital shield that prevents excessive moisture loss while protecting against environmental irritants, pollutants, and pathogens.
When the skin barrier is compromised,
transepidermal water loss (TEWL) increases, leading to dehydration, dryness, flakiness, and discomfort. This disruption causes the skin to feel tight, rough, and more susceptible
March 2025 PERSONAL CARE
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