Search "juice cleanse" and most of what comes up is a packaged kit: six pre-bottled juices a day, shipped cold, priced RM300-500 for a three-day box. The pitch is convenience — no chopping, no juicer, no planning. What you're actually paying for is the packaging and delivery, not anything the juice does that a home version can't.
Read the ingredient list on most kits and it's the same handful of produce repeated in different ratios: apple, celery, cucumber, lemon, ginger, a leafy green. You can buy that same produce at a wet market for a fraction of the kit price and juice it yourself, if you own or borrow a juicer.
The bigger issue with any bottled-kit or DIY juice-only plan is what it leaves out: fibre. Every juicing method, expensive kit or home blender, strips the pulp and keeps the liquid. That's the part of the fruit that slows digestion and keeps you full. A three-day kit at RM400 gives you none of it.
A simpler comparison: a 1kg pack of Gred A kurma costs a fraction of one day's juice kit, keeps for weeks without refrigeration, and comes with the fibre intact. It doesn't replace a juice cleanse's vegetables, but as the food you eat when breaking a fast or bridging between juice servings, it does a job the kit itself can't — it just doesn't come with slick packaging.
If you're going to spend on a cleanse, spend on the produce and the dates, not the box. Kurma Piarom Malaysia is a straightforward place to check current kurma pricing before you commit to either route.