system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 Why is lemon juice made with artificial flavor and dishwashing liquid made with real lemons?
gpt
Mostly, you are just getting confused by marketing.

Juice and soap companies are businesses. They are out to make something for the lowest cost which they can sell for the most money. Mostly, the lowest cost is going to be artificial ingredients whipped up in a lab. 

Lemon juice is a food product, and subject to certain laws which require ingredients to be listed. Most customers would rather see "artificial flavor" than "di-hydrogenase II flourocarbonhexagen" so thats what gets put on the bottle. Even if it is 99% pure real lemon juice, if there is the tiniest bit of artificial flavor in there, they still have to list it.

Soap is not a food product and is subject to much less strict laws about listing ingredients. It basically does not have to list anything. When it slaps "made with real lemons" on the bottle in huge letters, this really means they added like 2 drops in (the minimum legally required) so that they could make that claim and trick you into thinking it is very high quality.

99% real lemon juice still has to be labled as containing 'artifical flavors'

0.001% real lemon soap can be labeled as "MADE WITH REAL LEMONS!" 

Fluff words for cash...