Tweakment Finder TWEAKMENT




Written by: Becki Murray

Updated by:

Reviewed by: Alice Hart-Davis

Last Updated: 30 November 2023

Restylane Kysse is an injectable hyaluronic acid (HA) filler designed specifically for use in the lips. Injected into the lips, Restylane Kysse can either restore the volume that the lips have lost or redefine the shape of the border of the lips, which may have been lost over time.

As of 2023, Restylane dermal fillers have been used in more than 65 million treatments worldwide. Restylane is a brand you can trust, having been available in the UK since 1996 and still going strong.

Restylane Kysse is made using OBT (Optimal Balance Technology), a custom manufacturing process that creates a cross-linked hyaluronic acid gel. This means the product has the optimal balance of support to give results that can last up to 12 months but also the flexibility to feel and look natural.

Price Range



Restores or increases lip volume with quick, minimally invasive treatment


Cross-linked hyaluronic acid gel gives precise but natural-looking results

Lasts for

9 to 12 months

Treatment Time

30–60 minutes

Any Anaesthesia

Yes, topical



Before and After

Why We Recommend Restylane Kysse

Alice Hart-Davis
Founder, The Tweakments Guide

If you’re unhappy with the way your lips look, Restylane Kysse can be a terrific solution, as a quick lunchtime appointment can give you fuller lips with minimal discomfort and even less downtime. The cross-linked hyaluronic acid gel in Restylane Kysse means the practitioner retains precise control over your lip augmentation, giving you the shape and volume you want while retaining a natural look and your full range of movement.

About Restylane Kysse

Why might you be interested in Restylane Kysse?

As we grow older, and our bodies produce less collagen and elastin, our lips naturally lose some of their volume. Our lips become thinner, and fine lines and wrinkles develop around them, such as the short vertical lines often called ‘lipstick lines’ and the ‘marionette lines’ that run down from the corners of the mouth to the chin. Treatment with Restylane Kysse can restore lost volume to your lips, reducing or even eliminating lines and wrinkles.

If your lips are naturally thin, you need not wait for your lips to lose volume. Restylane Kysse treatment can increase your lip volume, giving your lips greater presence on your face.

Why is Restylane Kysse exciting?

Restylane Kysse offers fast and effective results from a tweakment that you can easily fit into your busy schedule.

How does a Restylane Kysse treatment work?

During your initial consultation, the practitioner learns what your goals from the treatment are; evaluates your lips for the treatment; and works out how much filler will be needed, where they will place it, and what the cost will be.

On the day of the treatment, the practitioner applies a topical anaesthetic cream to your lips to numb them. Once the cream has taken effect, the practitioner injects the Restylane Kysse filler into the appropriate parts of your lips using very fine needles. Some practitioners may use a cannula — a wider tube — rather than needles.

How long do the results last?

The results of Restylane Kysse typically last around 9 to 12 months. After that, you may need a touch-up treatment to maintain your results.

Is a Restylane Kysse treatment painful?

Treatment with Restylane Kysse usually involves mild to moderate discomfort. To reduce the pain you experience, the practitioner typically numbs your lips with anaesthetic cream before performing the injections.

The Restylane Kysse filler also includes lidocaine, a local anaesthetic, which further decreases the discomfort of the injections.

Where can Restylane Kysse be used?

Restylane Kysse is used primarily in the lip area and in the ‘perioral area’ (the medical term for ‘the area around the mouth’).

While Kysse is best known as a filler for lip augmentation, practitioners also use it for purposes such as the following:

  • Smooth out vertical lip lines. These are the short vertical lines sometimes called ‘lipstick lines’ or ‘smokers’ lines’.
  • Minimise ‘marionette lines’. These are the lines that run down from the corners of your mouth to your chin.
  • Reduce downturned mouth corners. These corners are sometimes called commissures, the line where the upper lip and lower lip meet.

Who is suitable for a Restylane Kysse treatment?

Suitable candidates for treatment with Restylane Kysse are either men or women who want to:

  • Restore or increase volume in their lips
  • Reduce or eliminate fine lines and wrinkles around the mouth area

How long does the treatment take?

A treatment with Restylane Kysse typically takes between 30 and 60 minutes, including the time for topical anaesthetic to take effect.

How quickly can you see results?

Immediately after the treatment, you will see an increase in lip volume and the change in the shape that you and the practitioner planned. But bear in mind that you may some experience some bruising and swelling for a few days. Until the bruising and swelling subside, you may find it difficult to judge the effect of the treatment.

After several days to a week, you will see the treatment’s effect more clearly as your lips settle into their final shape.

At what age can you get Restylane Kysse?

There is no specific legal minimum age in the UK for getting lip fillers, but practitioners may require patients to be 18 or older in order to understand the risks and benefits of treatment and make informed decisions.

In the USA, the Food and Drug Administration (FDA) on 9 April 2020 approved Restylane Kysse as a lip filler for use in patients 21 years and older.

How much does a Restylane Kysse treatment cost?

The cost of Restylane Kysse treatment varies considerably depending on the amount of filler used in the treatment. Treatment using 0.5 millilitre (ml) costs from £250 upward, but most treatments use considerably more than this much filler and so cost correspondingly more.

The treatment cost also varies by practitioner and by location. Some practitioners may offer discounts for follow-up treatments.

Are there side effects from Restylane Kysse?

As with any dermal fillers, treatment with Restylane Kysse may have some side effects, but they are usually mild and pass quickly.

The side effects you are most likely to experience are:

  • Swelling at injection points. Swelling usually subsides within a few days.
  • The injections may also cause bruising. This normally clears up within a week.
  • The treated area may be sore for a day or so. Try not to rub it.
  • You may feel small lumps around the injection points. These normally smooth out after a few days; if not, consult your practitioner.

If you experience other side effects, contact your practitioner for advice.

What is the aftercare advice following a Restylane Kysse treatment?

After having Restylane Kysse treatment, follow any specific advice your practitioner gives you about recovery.

Generally, you should treat your lips and mouth area as gently as possible. Follow these five Do’s:

  • Do avoid touching the treated area for several hours after treatment.
  • Do give the Kysse injections time to settle rather than testing your range of lip and mouth movement.
  • Do apply ice packs if needed to reduce swelling. Wrap the ice pack in a cloth rather than applying it directly to your skin.
  • Do wash and dry your face as gently as possible for at least five days. If you shave, do so gently.
  • Do skip your make-up, moisturiser, and other skin products for at least the first 24 hours, and preferably longer.

Follow these three Don’ts too:

  • Don’t sunbathe for at least 24 hours after the treatment.
  • Don’t exercise vigorously for the first 24 to 48 hours after the treatment.
  • Don’t use a sauna, hot tub, or Turkish bath for two to three days after the treatment.

Who are lip fillers not suitable for?

Lip fillers are safe and effective for many people, but they are not suitable for individuals with conditions such as the following:

  • Pregnancy and breastfeeding. Avoid fillers if you are pregnant or breastfeeding.
  • Allergies or sensitivity to filler or other ingredients. If you are allergic or sensitive to hyaluronic acid, you should avoid fillers that contain it. You should also avoid fillers that contain other ingredients to which you are allergic or sensitive, such as lidocaine in Restylane Kysse.
  • Acne or skin infections. Resolve the skin problems before having fillers injected.
  • Auto-immune disorders. Discuss any auto-immune disorder with your practitioner beforehand.
  • Blood-thinning medications. Discuss your use of any blood-thinning medication with your practitioner beforehand, because such medication can increase the risk of bleeding or bruising from the injections.

Consult your practitioner for advice about further contraindications.

What is Restylane Kysse used to treat


WOW! I am truly THRILLED!!! I have never had ANYTHING done before. And I have always toyed with plumping my lips a little. I already love my natural shape and smile, and I was really scared to go through with it in the fear the would not look natural, or like me! But there was no need to worry, I love how my lips look now! I feel so much more confident in myself.

I am so glad I finally decided to start getting my lips done. I have gotten Restalyne Kysse in March 2021, July 2021, and December 2021. It has made such a huge difference in my confidence and the way I feel about myself.

I’ve had juviderm lip fillers before but my experience with Restylane Kysse was even better. With Kysse I used one vile and got exactly with I wanted. Fuller, and natural but a little glam. Kysse adds a little pink color and made my lips look a lot more hydrated right away.


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