Using lipstick to make the lips more full

Using this lipstick is not
regarded as altering the creation of Allaah, rather it is a temporary
adornment, like lipstick, kohl and so on. But the permissibility of its use
is limited to a number of things: 

1 – It should not be
harmful to the skin, because of the general meaning of the words of the
Prophet (peace and blessings of Allaah be upon him): “There should be
neither harming nor reciprocating harm.” Narrated by Ahmad and Ibn Majaah
(2341); classed as saheeh by al-Albaani in Saheeh Ibn Majaah. 

So one should make sure
that this substance is safe and suitable for the skin.  

2 – Using it should not be
an imitation of kaafir or immoral women, such as if a woman wants to use it
to look like So and so among those woman, because of the general meaning of
the evidence which forbids imitating kaafir and immoral women, such as the
words of the Prophet (peace and blessings of Allaah be upon him):
“Whoever imitates a people is one of them.” Narrated by Abu Dawood (3512);
classed as saheeh by al-Albaani.  

3 – Using it should not
involve any kind of extravagance, because Allaah says (interpretation of the
meaning): 

“and
waste not by extravagance. Verily, He likes not Al‑Musrifoon (those who
waste by extravagance)”

[al-An’aam 6:141]

Extravagance means spending
too much money on permissible things. 

Some women spend a great
deal of money on these cosmetics, following fashion or seeking so-called
beauty, when there may be no need for that. If she spent this money or some
of it on feeding a hungry person or clothing a poor person, that would be
better for her and bring a greater reward. 

And Allaah knows best.