The concept is pretty straightforward: they consist of cross-linked HA chains as Monophasic fillers do, but incorporate free HA molecules alongside them. Monophasic products have been extensively studied and their safety has been well-documented in clinical trials for that reason, many injectors consider them to be first-line choices when selecting their preferred dermal filler product.īiphasic hyaluronic acid fillers are so-called as they’re effectively ‘two-part’. A single syringe of Monophasic filler contains just one ‘phase’ or type of hyaluronic acid gel. So the question still remains – is there a significant degree of difference between them? Here’s everything you need to know!Īs implied by the term itself, ‘Monophasic’ means one phase. Both types will also gradually break down over the course of a few months, requiring repeat treatments to maintain their effects. Most modern Monophasic and Biphasic fillers contain a small amount of local anaesthetic, in order to make treatments more comfortable. Monophasic and Biphasic products are typically used to smooth out wrinkles and folds, as well as to volumise key areas (lips, cheeks, tear troughs and jawline, to name a few).
They provide a stable and predictable result when used for facial augmentation, which cannot be achieved by highly-spreadable, non-crosslinked HA molecules (although this type of hyaluronic acid is a popular ingredient in many mesotherapy products). Fundamentally, Monophasic and Biphasic fillers are made up of cross-linked hyaluronic acid (HA) molecule chains. On the surface of things, both types have more similarities than differences. Contrary to popular belief, these are terms that relate to their structural properties, as opposed to their viscosity or ‘G prime’. Nowadays, injectable dermal fillers are increasingly being defined as either Monophasic or Biphasic.
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