This is an issue that needs clarification.
Strength refers to efficacy.
Mildness is about ingestability.
We use 50 grams of tongkat ali to produce 1 gram of 1:50 extract.
Theoretically, you could swallow 50 grams of root powder in water. The efficacy would be the same as 1 gram of 1:50 extract.
The 50 grams of root powder will be harsh on your digestive tract. Humans are not termites. We cannot digest wood.
Hard to say what health issues may result from ingesting several hundred grams of hard root wood everyday.
Anyway, a person ingesting tongkat ali is not after root wood fiber, but after quassinoids and related chemical constituents in tongkat ali root. There are many different quassinoids in tongkat ali. They are water soluble and heat resistant.
This is a property quassinoids have in common with many chemical substances in the human food chain. Caffeine in coffee and tea are also water soluble and heat resistant. The caffeine doesn’t get lost even if you cook your tea for two hours.
There are many chemical substances in tea. And even of a plant as commonly consumed around the world as tea, not every chemical constituent has been fully researched. For tongkat ali, the knowledge is scant.
Let’s say you want to produce an instant tea like Nestlé does. An instant tea is an extract of tea leaves that comes as a powder that can be dissolved in water (we produce with technologies that have made Nestlé famous) .
You surely have heard of people with digestive issues from tea. You can try it on yourself, too.
Try to brew 2 grams of tea leaves for 3 minutes. You will get most of the caffeine. You most probably won’t have digestive issues drinking it. But you possibly would from eating 2 grams of tea leaves, just as you would from 50 grams of tongkat ali root powder.
Now try to brew the same quantity of tea leaves for 30 minutes. The tea will be darker. There will be many tannins and other dissolved chemical constituents. And that kind of brew will cause heartburn and other irritations for many people.
Now try to use 20 grams of the same tea, and brew it for 3 minutes. You will get 4 times as much caffeine, so this brew is stronger.
At the same time, this brew, in spite of being stronger, is also milder on the digestive tract.
The same would be the case if you dry the two brews. 50 milligrams of powder resulting from 8 grams of tea will be stronger, and at the same time milder, than 50 milligrams obtained from 2 grams of tea.
So here you have an example of an extract that is stronger and milder at the same time.
Our 1:50 extract is like a long-brewed tea. Some people find it harsh on the digestive tract. If 8 grams of 1:50 extract per day is no problem for you, go for that.
Our 1:200 extract is further reduced at a ratio of 1:4. Some of the ingredients that may cause digestive issues with 1:50 are not present. So, ingesting 2 grams of 1:200 is milder than 8 grams of 1:50.
There is nothing in 2 grams of 1:200 that would not also be in 8 grams of 1:50. But of course, 2 grams of 1:200 have more key ingredients than 2 grams of 1:50.