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Results vary from person to person
Neauvia Intense Rheology is a cross-linked, pegylated hyaluronic acid filler by Neauvia Organic (Matex Lab) of Italy. This listing is sold by the box, one syringe per box.
The maker's range page shows seven Neauvia Intense models: Intense, Intense Flux, Intense Lips, Intense LV, Intense Man, Intense Rheology and Intense Rose, all called pegylated dermal fillers.
The box in the photo is red, printed "NEAUVIA ORGANIC" and "INTENSE RHEOLOGY" with a lotus logo. The doctor chooses the model.
Neauvia is a brand of the Matex Lab Group, whose Matex Lab SA is registered in Geneva, Switzerland. The maker's page names the manufacturer of Intense Rheology as Matex Lab SpA of Brindisi, Italy.
The maker states that its fillers are not authorised for sale in the USA and Canada.
On the US FDA's advice, a filler should be injected by a licensed health care provider with experience and filler training, because it is a medical procedure that should not be done yourself.
The US FDA lists the common effects of filler as bruising, redness, swelling, pain, tenderness, itching and rash. Lumps, infection and allergic reaction are less common, and injection into a blood vessel, which can cause tissue death, vision problems or stroke, is rare.
Before treatment, tell the doctor about inflamed or infected skin, easy bleeding, severe allergy, a tendency to raised scars, or pregnancy and breastfeeding. Unusual pain, a change in vision, or injection-site skin that is pale, grey or bluish needs prompt medical help. For storage, follow the leaflet in the box.
That depends on each person's health history and goals, which the injecting doctor assesses. What can be checked is that the maker is Matex Lab SpA of Italy and that it is a Class III device under EU MDR.
Neauvia Intense carries the same sort of risk as any filler, which the US FDA divides into common effects and rare serious ones. A licensed doctor must inject it and weighs your own risks first.
The US FDA notes that HA in some dermal fillers is naturally broken down by the body over time. How long depends on the area, the technique and the individual, and the treating doctor explains it for your case.
Hyaluronic acid is a substance the body makes naturally; in Neauvia Intense Rheology it is cross-linked and pegylated into a hydrogel at 22 mg/ml. A 2024 Polymers review adds that HA fillers are mostly made through microbial fermentation and then cross-linked so enzymes break them down less easily.
The price depends on the model and the quantity.
This information is for general knowledge and does not replace a doctor's advice. Every procedure should be performed by a licensed doctor in a medical facility.



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