Grooming and coat
Does swimming strip a dog's natural coat oils?
Last updated 23 September 2026 · How we write and check this
Short answer
Yes, regular swimming, especially in chlorinated or salt water, gradually removes the natural oils that keep a coat water resistant and glossy, which can leave frequent swimmers with a coat that feels drier or coarser over a season. Fresh water rinsing and occasional conditioning largely offset this effect.
Why the effect builds up over time
A single swim removes only a small amount of natural oil, which the skin generally replaces within a day or two, but a dog swimming several times a week throughout summer does not always get the chance to fully replenish those oils between sessions, leading to a gradually drier coat texture by the end of the season.
Chlorine and salt water compound the effect
Beyond the mechanical effect of water itself, chlorine actively breaks down oils on contact, and salt draws moisture out of the skin as it dries, both adding to the drying effect a plain fresh water swim alone would not cause to the same degree.
Keeping the coat in good condition through a swimming season
A thorough fresh water rinse after every pool or sea swim, along with an occasional moisturizing conditioner used every few weeks rather than after every single swim, helps replace what the water removes without overloading the coat with product.
Key takeaways
- Regular swimming gradually strips natural coat oils, especially in dogs that swim several times a week.
- Chlorine and salt water both add to the drying effect beyond what plain fresh water causes.
- A fresh water rinse after every swim, plus occasional conditioning, keeps the coat in better condition through the season.