No, and the reason is structural rather than a promise. Your curl pattern is decided by bonds in the cortex, the core of the strand, and reaching those bonds takes either a chemical relaxer or a flat iron running at around 450 degrees. Everything in this system sits on the cuticle, the outer layer, and none of it is capable of getting that far in. In practice your pattern usually looks more defined rather than looser, because the frizz halo that was blurring it is gone. Wash it out and your hair is exactly what it was before you started.

No. A keratin treatment works by breaking the disulfide bonds that hold your curl pattern, then locking the hair into a straight shape with a very hot iron. That is why it lasts months, and it is also why your curls never come back quite the same. This does the opposite job. Every bond stays intact and only the surface is smoothed, which is why it washes out and why you can wear your hair curly again the very next day. If you want permanently straight hair, this is not the product. If you want the frizz gone with your pattern untouched, it is.

Because most anti frizz products attack the problem from the wrong direction. They add moisture to the hair, which feels wonderful for an hour, and then humid air adds even more on top and the strand swells and puffs anyway. The frizz you get by noon is your hair drinking the air. This system seals the cuticle so the outer scales lie flat, which means damp air has nothing to get underneath in the first place. It is not a stronger version of what already failed you. It is a different mechanism.

That is the only condition worth designing for. Frizz happens when water in the air slips under a lifted cuticle and swells the strand, so the fix has to hold up in exactly the environment that causes it. Sealing the cuticle removes the entry point rather than trying to out moisturise the weather. Humidity, rain on the walk to the car, a heavy summer afternoon: the surface stays closed either way.

Build up is real, but it comes from heavy silicones layered on daily and never properly washed out, usually alongside a co wash routine with no real cleanser in it. The blend here is lightweight and water rinsable, and the shampoo in the set is made to clear it. If you are washing normally, nothing accumulates. If you have had build up before, it was almost certainly a heavy leave in used without a shampoo capable of removing it.

No. The shampoo in the set removes it as part of a normal wash, and any regular shampoo will do the same. You do not need to add a clarifying step to your routine and you do not need to strip your hair once a month to reset it. If you already clarify occasionally for other reasons, that will not cause a problem either.

No, and we would rather say so plainly than dress it up. It contains silicones, and the method excludes silicones as a category. That exclusion is a trade we made deliberately. Silicone is precisely what lets this smooth the surface without ever reaching the layer that holds your curl pattern, and it is the reason your curls survive a process that normally destroys them. If you follow the method strictly, this is not for you. If your priority is keeping your pattern while losing the frizz, the silicone is the part working in your favour.

Yes. There are no sulfates in the shampoo, the mask, or the serum. Sulfates strip the natural oils that wavy, curly and coily hair depends on, and stripped hair ends up with a rough lifted cuticle, which is the exact condition we are working to avoid. A cleanser that strips would undo everything the other two steps do.

No. Formaldehyde and formaldehyde releasing agents are used in salon smoothing treatments because they are needed to force hair into a straight shape and hold it there. Nothing here is trying to restructure your hair, so there is nothing to lock. That also means no fumes, no open windows, no mask on the person applying it, and nothing to weigh up about repeated exposure over the years.

It should not, as long as you use the serum the way it is meant to be used. It goes through mid lengths and ends only, never the roots, and fine hair needs noticeably less than thick hair does. Phytosqualane is one of the lightest lipids available and it absorbs rather than sitting on top of the strand. Start with fewer pumps than you think you need. Adding more next wash is easy, washing out too much and starting over is not.

Yes. The cuticle is the same structure on every hair type, from the loosest wave to the tightest coil, and the cuticle is the only layer this system touches. Texture changes how hair behaves, not what its outer layer is made of. On tighter patterns you will generally want more mask and more serum, simply because there is more surface area and more curve to cover. What it will not do on any texture, 4c included, is straighten. It smooths and seals, and your coils stay coils.

Yes, and it tends to make the press better. Pressing hair that already has a smooth sealed cuticle gives you a cleaner result at a lower temperature, and it slows reversion when the humidity climbs. Use all three steps, let the hair dry, then press exactly as you normally would. When you wash it out your natural pattern comes back as it was, because nothing in the process was permanent.

Yes, and that flexibility is the whole reason the product exists. Because nothing is chemically altered, the decision resets with every wash instead of being made once for you in a salon chair. Diffuse it and you have curls. Blow it out and you have smooth. Neither choice costs you the other one, and neither one is final.

Yes. Nothing in the formula strips, lifts, or reacts with hair colour. If anything it helps, because a sealed cuticle holds colour molecules in for longer and a rough lifted cuticle is one of the main reasons colour fades faster than it should. It is equally safe on highlights, balayage, and toner.

Yes. Because it works on the surface and alters no bonds, it does not react with previous chemical services. It will not strip a keratin treatment that is still in your hair, and it will not interfere with a relaxer or cause the reactions you get from mixing incompatible chemical processes. It is also a sensible way to manage frizz while you are growing out a treatment you regret.

None of the five actives are proteins. Niacinamide is a vitamin, phytosqualane and the omega blend are lipids, the carbohydrate complex is a humectant, and the smoothing blend is a surface sealant. If you are protein sensitive, or you have been through protein overload and the stiff straw like feeling that comes with it, nothing here adds to that load.

From the first wash. This is a physical change to the surface of the hair rather than something that has to accumulate over weeks, so the smoothness is there as soon as it dries. What does keep improving is the general condition of your hair, because a sealed cuticle loses less moisture day to day and takes less damage from brushing, friction and weather.

Yes. Air dry it, diffuse it, blow it out, or press it. The seal holds through all of it. Most people find they need less heat and a lower temperature than before, because a smooth cuticle already lies flat and reflects light before a tool ever touches it. There is nothing about your styling routine you have to change to make this work.

The serum on its own will still smooth and seal, so it is a reasonable place to start if you only want to try one thing. You will get less out of it than the full routine, because the shampoo clears the surface for it to land on and the mask lays the cuticle flat before it gets sealed. Think of the serum as the step that locks in what the first two set up. Alone it works. In sequence it works considerably better.

Send it back within 30 days and we refund you, including sets you have already opened and used. We would far rather you tested it on your own hair in your own climate than tried to judge it from a product page. If it does not do what we said it would do, that is our problem to fix and not yours to pay for.