Tint question for brain dead me, please?

[Buttercup Honey]

This is a ridiculous question I know :o but I'm doing a few lowlights over a tint which I did last week on very porous hair and it just didn't cover properly (fade ends and grey). My dumb question is will it be ok to tint again 7 days later shade darker?
I know A semi would be better for fade but it won't cover this grey.
I know tint won't lift tint but it will darken ok won't it?
I'm thinking yes
Thankyou xxx

 

[persianista]

Yes it will

 

[alexandra.]

Yes you will be fine! X

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[Buttercup Honey]

Thankyou for replying,
I'm going brain dead at this stage with this lovely lady but crazy hair
Have a great weekend xxx