Please capitalize where necessary: but all this negatively affects the structure of the hair and makes them brittle.
A: But all this negatively affects the structure of the hair and makes them brittle.

Q: participants stay with carefully selected, respectable host families in a home stay setting.

A: Participants stay with carefully selected, respectable host families in a home stay setting.

Q: netherlands antilles guilder 409.910 naf
A: Netherlands Antilles Guilder 409.910 NAF

Problem: the vikings supplemented their attire with jewellery and furs from different animals.
Can you repeat this sentence, but capitalize it?
Answer: The Vikings supplemented their attire with jewellery and furs from different animals.

Text: hi, my name is laana and i am 20 years.

Correct capitalization: Hi, my name is LAANA and I am 20 years.

Text: chaste trees grow to a height of approximately three metres.

Correct capitalization:
Chaste trees grow to a height of approximately three metres.