Hydra-flex HA PLUS - is a joint concentrate offering high levels of ingredient. Contains high level of HMW Hyaluronic acid (HA) . Contains no substances known to contravene with swabbing. For all horses, particulary high perf ormance, competition horses and those exposed to wear and tear. Concentrated and free of fillers. Offers real value for money. This is the product of choice and recommended for all levels of competition if you all looking for an all-in-one and advanced care product to protect joints. Nil Swab for competing and racing.