Cosmetic Treatments by Trained Doctors
Valkhof Kliniek is a cosmetic clinic in Amsterdam. Wij believe in patient-centered care, honest advice and precision. At our clinic you will always get the best treatment by trained doctors.
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We work exclusively with the best brands
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Botox Treatments
We only use real Botox®
Botulinum toxin (Botox) relaxes the muscles and has been used in medicine for decades. In aesthetic medicine, we use it to soften or eliminate wrinkles. By reducing muscle contractions, the treatment also helps prevent the formation of new wrinkles over time. Following the injection, the effects appear gradually, with optimal results visible after approximately 2 weeks. During a follow-up appointment, we can provide touch-ups if necessary. On average, results last for 3 months; however, with regular treatments, this duration can extend to 6–9 months. Unlike many other clinics, we work exclusively with the original Botox® by Allergan. We do not offer any other brands of botulinum toxin.
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Treatment with filler
Natural fillers for a natural result
We use fillers based on hyaluronic acid, a substance naturally found in the body—to restore volume and effectively soften deep-set wrinkles or folds that Botox cannot address. These include areas such as the nasolabial folds (nose-to-mouth lines), marionette lines, or fine lines around the mouth. We work with MaiLi®, a premium filler designed to adapt to your facial movements for a truly natural result. The effect is visible immediately: the gel binds moisture, fills wrinkles, and is gradually broken down by the body over time. Depending on the treatment area and skin structure, results remain visible for several months and, in some cases, for over a year.
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Collagen Treatments
Improve and support your skin with Profhilo®
Profhilo® is an innovative treatment using pure hyaluronic acid to hydrate and firm the skin from within. Unlike traditional fillers, it does not add volume or 'fill' wrinkles; instead, it stimulates the production of collagen and elastin. The result is smoother, firmer, and refreshed skin with a natural glow. The treatment typically consists of two sessions spaced one month apart. The effects build gradually and last on average for 6 to 12 months. Profhilo® is exceptionally safe and ideal for anyone looking to visibly improve their skin quality and elasticity.
Our treatments
We take pride in offering only treatments that are scientifically proven to be effective. We provide the highest standard of care using only the finest materials; as physicians, we refuse to compromise on quality in any way. We provide honest advice and will never convince you into more treatments than you intended. View our pricing overview below.
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Treatment with botox
We work exclusively with the original Allergan Botox® (Vistabel) brand; we never use generic alternatives. Your satisfaction is our priority—if you are not fully satisfied with the results after two weeks, your follow-up touch-up is free of charge
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Treatment with Hyaluronic Fillers
Treatment areas we cover: Nasolabial folds, marionette lines, cheekbones, chin, jawline, cheeks, and smoker’s lines. The exact amount of filler required will always be discussed with you in advance. No surprises afterward!
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Treatment with Profhilo
Single treatment: €240. It is possible that multiple sessions may be required; this will always be discussed and agreed upon with you in advance.
Book an appointmentReviews
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"Koen is very skilled and gives honest advice. I am always satisfied and happy with the treatment! I have been a customer for over a year now and I’m staying. The prices are very attractive, as are the friendliness and professionalism :)" - Ellen
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"I’ve been coming here for 2 years now for Botox (3 zones): forehead, frown lines, and crow's feet. Koen is very meticulous; he listens carefully to your wishes and always makes sure you feel at ease. Every single time, I am thrilled with the end result!" - Liesbeth
"Koen is really patient and truly puts you at ease if you, like me, are afraid of needles. Mature, professional advice. I will definitely be back! Thanks." - Danielle
"Very satisfied with Doctor Koen van Maaren. He makes you feel at ease immediately and is very friendly. He does his work skillfully and I’m always happy with the result 🫶" - Sonja
"It was my first time, but I am very satisfied. Friendly doctor (Koen). He gave a clear explanation about the lip flip. I will definitely be back." - Carme
"I’ve been a client for some time now and I’m very satisfied! Koen really understands his craft and works very professionally; the results are beautiful! I’ll be back soon for a touch-up." - Anonymous