Garage Therapy /ONE: Car Shampoo V1

(6 customer reviews)

£10.00£39.00 Incl. VAT


Express delivery from £4.99
Free delivery over £40 (UK Mainland)
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Product Info

Please Note: This is version 1 of the Garage Therapy Car Shampoo.

Garage Therapy /ONE: Car Shampoo is a premium pure pH neutral Car Shampoo that is the perfect daily maintenance shampoo that your car’s paint deserves. A luxurious blend of concentrated surfactants, emulsifiers, and lubricants will gently and effectively clean the paint whilst being safe to use on waxes, sealants, and coatings.

Garage Therapy /ONE: Car Shampoo high concentrate formulation provides high lubricity, high foaming, and free rinsing performance ensuring a clean residue-free finish.

What is the best dilution ratio?

​During the development and testing, we have seen great performance from using just 10-15ml of product. This shampoo is highly concentrated!

​The performance of all shampoos depends on multiple factors such as water hardness. Due to this we recommend using 20ml as the standard and experiment lower or more depending on your preference.

​​Why Garage Therapy /ONE: Car Shampoo and not another brand?

An ultra-premium quality shampoo with incredible cleaning power, suds, and lubricity. the main advantage is its ability to maintain a level of performance for the whole wash process without loss of foam and lubrication.

How To Use

  1. Shake well before use. Dilute 20ml for a moderately dirty car in a 4-5 gallon bucket. Use 30ml for a heavily soiled car for extra cleaning, suds, and lubrication.
  2. ​Pre-rinse the car to remove any loose dirt.
  3. Wash the car with a mitt starting from the top, working down to ensure the dirtiest parts of the car are washed last.
  4. Rinse thoroughly.

For Best Results

  1. ​Use the two bucket wash method, with a wash and a rinse bucket.
  2. ​Agitate the wash bucket with a hose sprayer to produce rich luxurious foam.
  3. ​Work one panel at a time working in straight lines.
  4. ​Garage Therapy /ONE Car Shampoo is high foaming and can be used through a foam lance to provide additional lubrication.

Delivery Info

We have multiple delivery options

  • Next day DHL/UK Mail carrier (UK Mainland)
  • 1-3 day DHL/UK Mail carrier (UK Mainland)
  • 2-3 day DHL/UK Mail carrier (Highlands, Islands & N.Ireland)
  • Click & Collect from store


The cost of the carriage will be displayed before your final checkout. Free delivery is available on orders over £40 for the UK mainland, and £60 for Highlands, Islands & N.Ireland.


  • Orders will only be dispatched and delivered on weekdays.
  • Orders for the next working day delivery must be placed before 2 pm. This gives us time to pick and pack before the carrier arrives to collect.
  • We aim to dispatch all orders within 48 hours of order receipt, Monday to Friday.
  • A despatch email will be sent when your goods leave us, if your order is delayed for any reason we will contact you.


We pride ourselves on our customer service but mistakes can happen. If you receive an incorrect or faulty item, please notify us within 30 days to arrange a refund, return or exchange. Contact Us.

6 reviews for Garage Therapy /ONE: Car Shampoo V1

  1. Jake Cheshire (verified owner)

    I was really looking forward to using this after a fair amount of hype from a few people from YouTube.

    Unfortunately, i was very let down by this shampoo. I added 20ml to 15-17L of water. Decent amount of suds/foam – but lacks in lubrication, which is the critical part. 3 others who i’ve spoken too have experienced the same with it, too.

    I’ll be taking all reviews with a bigger pinch of salt from now on!

  2. DK

    I’ve been using GT /ONE shampoo since it’s launch and I have been very impressed with it.
    The wash mitt glides across the panel effortlessly.
    It can also be used through a foam lance for extra safe cleaning power.

    Highly recommended, 5 Stars

    If your in any doubt as to how good this stuff is watch the you tube reviews by the professional detailer

  3. GM Details (verified owner)

    I was watching youtubers rave about this range of products so had to try for myself and wow was I surprised.

    This shampoo has everything you need in a car shampoo, it’s one of the highest concentrated shampoo’s on the market so it’s very good value, you can use as little as 15-20ml in a huge 20L bucket to give you suds which last throught the wash, slickness which allows the wash media to glide across the paintwork and the scent is lovely!!

    Simplewax Suds is another of my favourites as I have a custom made one with colour and scent, so these 2 products are now my absolute favourite shampoo’s

    The Garage Therapy one has possibly one very slight edge over Simplewax. And that’s how it leaves the paint, squeaky clean, literally!!

    Good job Garage Therapy ?

  4. Patrick (verified owner)

    One of the best shampoos out there would highly recommend

  5. jeremie (verified owner)

    Great product. Smells amazing, very slick, suds nicely and they last the whole wash, cleans very well, even at 1000:1 – which is recommended dilution.

    My go to shampoo. I’ve tried many and have settled on this!
    Great product from GT and County service is top notch, with one of the lowest free postage spends. Win, win!

  6. Matthew Donnelly (verified owner)

    My new go to shampoo, good dilution ratios about 20 ml per bucket. Creates nice suds but more importantly provides lubrication helping to prevent marring. Especially cost effective in bulk

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