We go through a lot of conditioner behind the chair at Sølvi, and most of it never earns a permanent spot on our shelf. Davines Heart of Glass Rich Conditioner did. After a full season of using it on blonde clients and on a few of our own stylists who lift their hair, here is our honest first-hand review of what it does, what it does not do, and who should actually buy it.
What it is
Heart of Glass Rich Conditioner is a violet-toning conditioner built specifically for blonde and highlighted hair. The purple pigment neutralizes the yellow and brass that creep back in between salon visits, and the formula is designed to help fortify strands that have been weakened by lightening. It runs $50 a bottle, which puts it firmly in the premium tier. You can see it on our retail page here.
One thing we want to be clear about up front. The name says "Rich Conditioner," but in practice this is a toning and strengthening conditioner first. If you are expecting a heavy deep-treatment mask, that is not what this is. Think of it as the daily-to-weekly step that keeps your color clean and your hair feeling smooth, not a once-a-month repair bomb.
How it performs in the Boise climate
Our studio sits downtown at 104 S Capitol Blvd, and anyone who lives here knows what the high-desert air does to hair. Boise is dry most of the year, and lightened hair drinks up that dryness fast. Blonde clients are the ones who feel it most, because bleached strands are already more porous and thirsty.
What we noticed is that the glossy, soft finish actually holds up in our dry air. A lot of purple products leave hair feeling chalky or squeaky after they tone. This one does not. The strands come out smooth and they reflect light instead of looking flat, which is exactly what you want when your blonde is the whole point of the look.
How we tell clients to use it
The application is simple, and getting it right matters more than people think. Massage it into wet hair, leave it on for two to three minutes, then rinse. That short dwell time is enough for the violet pigment to do its job without over-toning into a purple cast.
For most blondes here, two or three uses a week keeps brass in check. Daily users with very pale or platinum hair can run it more often. If you are seeing your color go warm faster than that, it is usually a water or styling issue, and that is the kind of thing we troubleshoot in the chair during your color appointment.
The honest drawback
Here is the real talk. This product only earns its keep if your hair is blonde, highlighted, or lightened in some way. The violet toning does nothing for natural brunettes or anyone who is not fighting brass. If that is you, your $50 is better spent elsewhere, and we will happily point you to a different conditioner on the shelf.
The price is the other honest catch. Fifty dollars is a real number for a conditioner. We think it is worth it for the right person because of the toning plus the strengthening it gives lightened hair, but we are not going to pretend it is a budget pick. It is not.
Who it is for
If you are blonde or heavily highlighted, you live in or around Boise, and you are tired of your color going yellow a week after you leave the salon, this is one of the few products we will recommend without hesitation. It tones, it fortifies the strands that lightening leaves fragile, and it finishes glossy instead of chalky. For our blonde regulars, it has quietly become a staple.
If you want our stylists to look at your hair in person and tell you honestly whether this belongs in your routine, you can book with us at Sølvi and we will sort it out together at the chair.