geez..this is a very oldschool brand and product. It is a very common household product for me. Not sure if it still is for younger generations.

You can easily find these in shops that sell off the shelf hair products. I don't know what to call these shops. Basically they sell a lot of hair products that are not sold in supermarkets. A lot of people, mostly chinese does not use hair products off the shelf. They buy it from these shops which sell better quality shampoos or gels and so on that is not as commercialized. These shops also mostly supply their products to saloons.

So you can actually go ask saloons where to buy that. They should be able to point you to these shops.