dpHUE Apple Cider Vinegar Overnight Hydrating Hair Serum vs dpHUE Color Fresh Oil Therapy

Despite the apple cider vinegar name, reviewers remark with surprise that it does not smell of vinegar, describing a light pleasant scent instead of the salad-dressing smell they had braced for.

A recurring minority report no hydration benefit at all, saying their hair felt the same or actually drier by morning, and a smaller group within them describe it drying stiff or sticky or leaving little clumps of product in the hair.

Reviewers repeatedly note that it soaks in overnight and leaves nothing on the pillowcase, which several say was the exact worry that had kept them from trying a leave-on treatment worn to bed.

The complaints cluster by hair type: reviewers with fine, thin or already-oily hair describe greasy, stringy or weighed-down roots by morning even using the smallest amount, while thick and coarse-haired reviewers report the opposite and several explicitly recommend it only for thicker hair.

The most common positive account is waking to hair that is noticeably softer and smoother than usual, with fewer tangles, easier morning brushing and less overnight frizz than the reviewer's normal second day.

A recurring account is softer, silkier ends over continued use, with reviewers who bleach, colour or heat-style their hair saying ends that used to feel dry and hay-like no longer do.

Reviewers consistently report the oil absorbs without leaving a greasy or heavy residue, so daily or even twice-daily use does not make hair look slick, and those who say their hair weighs down easily report it stays light.

Frizz, flyaways and static are the specific problems reviewers say it fixes, named for summer humidity and for winter dryness alike, with added shine that they contrast against the oil-slick look of other serums.

Several reviewers with blonde or naturally silver hair single out that this oil is clear rather than yellow-tinted, saying it adds shine without staining or shifting their colour the way a tinted bonding oil previously did.

The fragrance is the single thing reviewers raise most often, described as clean and fresh rather than oily, with several saying they would wear it as a perfume and that they apply the oil on days they have no frizz just for the smell.