Quick question about beard growing mechanics.

Hello fellow out-laws. I am currently replaying RDR2, beat it a few year a back on Xbox and am currently replaying it on steam. I am in chapter 2. That being said, what is the max level beard and hair levels I can achieve in chapter 2? I go to general store, buy 3 hair tonics, sleep max amount in hotel, rinse and repeat. I am currently at level 7 beard and not sure about the hair I’m more concerned about beard. Have seen online that the game caps the beard level at 7 or 8 until you pass chapter 4 or something along those lines. Is that true? Thanks.