Din explicatiile pe care le-am gasit, frosting ar insemna tot ceva de genul suvitelor. Ambele sunt procedee de colorare (decolorare?) a parului. Singura diferenta, din cate am reusit eu sa deduc ar fi:

- streaks ar fi suvite contrastante (de multe ori se face referinta la suvite "arse de soare"), dar mai rare si cu aspect mai natural.

- frosting ar fi o decolorare a parului prin suvite, dar mult mai numeroase - pentru a accentua /sublima un blond natural sau pentru a ascunde firele albe fara a vopsi tot parul.

Frosting se refera de cele mai multe ori la DECOLORARE - cred ca a fost "imprumutat" din bucatarie, unde frosting este o glazura foarte alba facuta din albusuri si zahar.

Exista si o varianta inginereasca: "a lusterless finish of metal or glass"; "a roughened or speckled surface imparted to glass or metal"; "a process in which a scraped metal surface is decorated with the use of a handscraper".

Cateva referinte din cosmetica ar fi:
-"a reverse frost or low lighting process can soften the appearance of gray hair. A frosting cap or foil technique can be used. A reverse frost or low lighting can be achieved by selecting a shade close to the natural color";
- "Frosting/streaks = DES MECHES"; "Light frosting/highlights UN BALAYAGE";
- "Making blonde hair look lighter can be easy and fun. Simply highlight already blonde hair. This can be achieved by using a frosting cap or a foil technique"
- "kinda like frosting your hair but much better & you can put several different shades so it looks natural. Well, my beautician suggested I sun glitz in reverse and instead of putting lighter shades in to add highlights of a lighter color she added several different shades of DARKER so the gray I have looks like it is the frosting!"

Nu m-am prea lamurit nici eu definitiv, dar sper macar se pun pe calea cea buna...