Jack Oosten

Activity

Mon

Wed

Fri

Sun

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

What is this?

Less

2 members • Free

A hub for building Hard-to-Kill humans. Real, practical answers built on evidence and experience. If it makes you more JACKEDNLEEN it’s covered here.

189.6k members • Free

2.6k members • Free

815 members • Free

333 members • Free

Contributions

@jack-oosten-1859

Owner of JACKEDNLEEN AND JACKEDNLEEN GYM. I build well-rounded, robust, bada$$ humans with a DYNAMIC and in depth approach to physique enhancement.

Active 15h ago

Joined Nov 27, 2025