Synopet Feli-Syn

Synopet Feli-Syn


The best choice for your cat’s joints.

  • GLMax® Green-lipped mussel
  • Bio-CM100® Bio-Curcumin
  • Black currant leaves
  • New customer? Advice: 25 days boost 3 ml per day
  • Same day dispatch if ordered before 3pm

4 in stock (can be backordered)

Feli-Syn | joint boost for cats

For flexible joints and healthy cartilage

For all cats | all breeds | big or small | young or old

Feli-Syn is a joint boost for cats. It contributes to the maintenance of healthy cartilage and flexible joints. It helps the cat to move easily and smoothly.

The main ingredients of this liquid boost are GLMax® Green-lipped mussel, Bio-CM100® Bio-Curcumin and Blackcurrant leaf. The product also contains Vitamin C and D3.

Important information:


Once or twice a year is generally sufficient to keep the joints in good condition.


It is often visible within the period of use, generally after 10 to 14 days.


Better absorbable by the body and easier to administer.

Premium quality

Composed with natural ingredients, each of which has its own unique processing method.


Synopet Cat is a liquid supplementary feed for flexible joints* of cats.

Synopet Cat contains the unique GLMax® Green-lipped mussel. GLMax® is liquid and contains all the original ingredients of the Green-lipped Mussel (Perna canaliculus) in their natural form and consistency (it is 100% pure Green-lipped mussel).
BCM-95® Bio Curcumin (Curcuma longa) and Blackcurrant (Ribes nigrum) leaf supplement the operation of GLMax®, but through other mechanisms. That is why this synergetic total formula is quickly visible in the joints * of cats.
Synopet also contains Vitamin C for the maintenance of healthy cartilage **. Together this helps to maintain a good feeling while moving. For additional support, Vitamin D3 is added to Synopet. –>

Ingredients of Synopet Feli-Syn (food supplement for cats):


GLMax® Green-lipped mussel (Perna canaliculus), Bio-CM100® Curcuma (Curcuma longa)

Additives per kg dry matter

Nutritional additives

Vitamin C (3a300): 242,857 mg, Vitamin D3 (3a671): 28,571 IU, Ribes nigrum extract: 238,571 mg

Technological additives

Preservatives: Potassium Sorbate (E202), Lactic Acid (E270), Citric Acid (E330) Sensory additive: Aroma (Fish)

Analytical constituents

Crude protein: 2.3%, Crude fat: 0.3%, Crude fiber: <0.3%, Crude ash: 0.6%, Moisture content: 93%

Contains Curcumin for flexible joints and Vitamin C for the maintenance of healthy cartilage

Additional information about the main ingredients:

GLMax® Green-lipped mussel (Perna canaliculus)

100% pure Green-lipped mussel, cold pressed, liquid, contains all original ingredients

Bio-CM100® Bio-Curcumin (Curcuma longa)

easily absorbable and biologically active, with more than 95% curcuminoids guaranteed

Blackcurrant leaf (Ribes nigrum)

1:10 leaf extract, many active ingredients, liquid & extra concentrated

Vitamin C.

for the maintenance of healthy cartilage

Instructions for use Synopet Feli-Syn

Use by cats | Feli-Syn 75 ml:

  • cats up to 10 kg: 3 ml
  • 1 x per day over the food
  • with handy dosing syringe
  • Duration of use: 25 days

Additional information on use:

  • Adhere to the recommended operating time
  • In special cases, double the amount may be given during 10 days
  • result visible within recommended useful life
  • A boost once or twice a year
  • no continuous use required
  • Always shake well before use

Explanation continuous use:

Continuous use is not necessary, but is allowed. Synopet Feli-Syn is also completely safe to use during continuous feeding. When choosing continuous use, we recommend giving half the regular amount.

Not for pregnant cats.


via Facebook

Our cat is moving again. It has been a long time since he tried to jump on the table.

Nancy Lutin, owner of Flupke

Update from Flupke: Flupke gets a regular boost and because of that she’s really doing well. The osteoarthritis of the jaw can be well controlled in this way. We are happy with it! Kind regards, Gino & Nancy

Joyce Koole-Meeuwessen

via Facebook

I give it to my cat and he responds very well to it.

Nan Schoutissen

Together with Synofit Premium Capsules I also bought Synopet for my 16 year old. On the second day that I added this remedy to my hangover, I saw him climb up my fence and walk around on top. I hadn’t seen this in years!