Country of origin · Republic of Korea
Gouri is a CE-marked and Australian TGA-registered Korean fully-liquid polycaprolactone (PCL) collagen biostimulator — 210 mg/mL PCL with no microspheres. Because it is fully solubilised, it spreads evenly through the tissue and stimulates your own collagen for broad facial firmness and skin quality. Supplied ready-to-use as a 1 ml syringe.
Why choose Gouri
How Gouri stimulates collagen
Gouri’s PCL is fully solubilised rather than suspended as microspheres, so on injection it spreads evenly through the tissue instead of filling space. As the liquid PCL is gradually resorbed it prompts fibroblasts to produce new collagen, improving firmness and elasticity over weeks to months.
Gouri specifications
Gouri treatment areas
The areas below are commonly treated with this category of product by practitioners. Suitability, technique, and dosing for any given area are determined by the treating practitioner based on individual patient anatomy and clinical judgment.
Contraindications
Gouri — frequently asked questions
Gouri is a Korean collagen biostimulator made from fully liquid polycaprolactone (PCL) at 210 mg/mL, with no microspheres. It is supplied ready-to-use as a 1 ml pre-filled syringe and works by stimulating the skin’s own collagen.
Conventional PCL fillers suspend solid microspheres that physically fill space. Gouri’s PCL is fully solubilised, so it spreads evenly through the tissue and works by stimulating collagen rather than space-filling.
Gouri is CE-marked and is registered on the Australian Register of Therapeutic Goods (ARTG 459493, a Class III medical device); it is not a US FDA-approved product. Polycaprolactone as a raw material has a long history in absorbable medical devices, but that is separate from the finished product’s regulatory status. Verify the product’s status in your jurisdiction before use.
No. Gouri is supplied ready-to-use as a liquid in a pre-filled syringe. If any dilution is used, the specific ratio and preparation are determined by the treating physician according to their technique and treatment goal.
The collagen stimulated by Gouri develops gradually over weeks to months; the PCL is resorbed over time while the collagen response supports the result. Duration varies by individual.
An HA filler adds immediate volume by occupying space and is reversible with hyaluronidase. Gouri is a biostimulator — its effect comes from the collagen it stimulates, which develops gradually and is not reversible with hyaluronidase.
Store at room temperature, away from direct sunlight, and do not freeze. Refer to the packaging for the printed expiry date.
Gouri is a professional injectable intended for licensed healthcare professionals trained in collagen-stimulating treatments, used in accordance with local regulations and the official instructions for use.

Amanda Choi –
Everything arrived in perfect condition. I’ve had issues with other shops where the boxes show up crushed or the seals are questionable, but fillersfairy clearly knows what they’re doing. The packaging was sturdy, the Gouri boxes were pristine, you can tell they handle their stock with a lot of respect.
Dr. Elena Vance –
I was a bit nervous about the injection process with Gouri since it’s a liquid PCL, but the flow is incredibly smooth. Unlike some of the thicker, grittier fillers I’ve used in the past, this spreads so evenly under the skin. It feels much safer to administer because it doesn’t feel like it’s going to clog or clump.
Michael Rossi –
The most stressful part of ordering supply online is usually wondering where your money went, but this site makes it so easy. I loved that I could check the real-time status of my order whenever I wanted. It didn’t just ‘ship and disappear’; I knew exactly when it hit my doorstep. The logistics are super transparent, which is rare these days.
Sarah Jenkins –
I’ve been hunting for a reliable supplier for my clinic for months and finally stumbled upon fillersfairy. I honestly couldn’t believe the price difference when I started adding more to my cart—the tiered discounts are no joke. I ended up grabbing 20 units and saved a ton compared to my previous local distributor. It’s definitely the real deal, and seeing those savings hit the total was a huge relief for my overhead.
Michael Rhodes –
I switched to Fillersfairy after my previous supplier raised their prices. Their bulk discount saved me almost $100. It stung a little when I injected it, but by week 6, my marionette lines had faded significantly. My skin feels more elastic when I pinch it now.
David Chen –
I’m 55 and researched PCL fillers before choosing Gouri. Had it done for marionette lines (sad mouth corners). You need the full 3 sessions, monthly – patience is key. Don’t expect instant Botox-like freezing. What you get is subtle rebuilding. By month 3, those downturned corners were noticeably lifted. It’s not ‘no lines,’ but they’re WAY softer. Elasticity feels improved – less crepey. The longevity seems good, still going strong at 7 months. Works as described, just manage expectations and commit to the process. Very happy with the natural look.
Sophia Miller –
Had 3 sessions done at my derm’s office over 12 weeks with this Gouri Liquid Collagen stuff. By week 8? Wow. The lines are SO much softer, like filled in from the inside. My skin honestly feels thicker and bounces back better when I pinch it (gently!). It’s not an overnight miracle, but the gradual improvement is REAL and looks super natural. No weird puffiness. The slight redness after each jab faded fast.