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INCI: Phosphoric acid

What is Phosphoric acid?

Phosphoric acid is also commonly known as orthophosphoric acid. Considering the strength and chemical category phosphoric acid falls into the weak acid category.  Its physical form can be defined as a colorless, odorless, and viscous liquid. It can be obtained from phosphate rock. Apart from being used in cosmetic products, food-grade phosphoric acid is used in making beverages and to acidify food items.

Use & Benefits:

Phosphoric acid is generally used as a buffering agent in cosmetic products. Certain chemicals or ingredients cannot exist in a useful form in a basic environment and need an acidic or neutral environment to exert a proper effect. So, phosphoric acid is used in moderations or as needed for adjusting the pH of the product. So, it is used to control the pH of the cosmetic and personal care product.  It can also be used as a sequestrant. As we age our skin pores look enlarged, and may not give tighter look to the skin. So, when a sequestrant is used, it denaturalizes protein/ dead skin cells/ bacteria, cleans the clogged pores, and shrinks the pores as well. It is also used as an antioxidant. It does not only protect the skin but also a product from any oxidative spoilage of the product.  It is used in formulations of cleansing products, bath products, and other personal care products.

How to create your own Personalized Skincare with Lesielle?

Icons of the lesielle custom skin care system

Step 1: Select a nourishing base compatible with your skin, and your desired moisturization level

Step 2: Complete your treatment with up to four active ingredients for consistent and occasional use.

Step 3: Insert your base and up to four actives ingredients into your Lesielle device to produce a fresh single dose of face cream on demand when you need it.

Complete your routine with a cleanser and other complimentary products and accessories.


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The skincare system for an ever evolving skin, using recognized active ingredients with scientifically proven efficacy to create treatment tailored to each day's State of Skin. 

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