A delicate problem

Blame the product and you?

“Is that a new mousse your using in your hair? Do you know, I don’t really like the smell of that”

Difficult.

I suppose it’s possible we might all small a bit in the weather we’ve been having, especially if it’s a hormonal time of life one way or the other.

It could be product of one kind or another too. Gone stale in the bottle?

Unwashed hair does smell, I agree.

It's hard to describe the smell. The clothes looked clean enough so maybe it's a personal hygiene issue. Also possibly the hair. Maybe sweaty unwashed hair full of product? I'm reluctant to say how close a family member it is!

Also is it a woman or a man?

I guess it depends how close you are to the person as to if you should mention it.You don't tell us if it's a distant family member .
If it's like a sister or something perhaps you could jokingly say something to take the sting out of it.
Also , was this person previously spick and span ? Could it be to do with illness?

I think it depends on your relationship to the person.

Can you identify the whiffiness?

Then it might be easier to suggest something.

I mean is it coming from clothes or person? Men particularly seem to be quite clean in their person(ash and shave) but not wear the same clothes for weeks.
Whereas women’s clothes are more inclined to have that left in the wardrobe for years smell.

It really depends how close you are to them too. I have asked my daughter to tell me if I smell and I’m pretty sure she would.

Sorry, but recently and what kind of smell please?
Forgotten to use deoderant smell or had and accident smell?