The Ingredient Files
Activated charcoal, and what it actually does.
Charcoal has been sold for years as a magnet that pulls toxins out of skin. That is not what happens. What happens is simpler, entirely physical, and still worth doing once a week.
1,000 m2
Internal surface area a single gram of activated carbon can carry once it has been fired
1 to 2
Times a week a charcoal polish earns its place in a routine, and no more than that
60 sec
How long the paste needs to sit on skin before it comes off again
Carbon, fired until it is full of holes.
Activated charcoal starts as something ordinary. Coconut shell, usually, or bamboo. It is then heated to a high temperature in the presence of steam or gas, and that process opens up a dense network of microscopic pores through the carbon.
The result is a material with an enormous amount of surface for its weight. A single gram can carry hundreds to over a thousand square metres of internal surface. That surface is the entire point of the ingredient.
For skincare it is milled very fine and suspended in a paste, which keeps it in contact with skin evenly instead of sitting in dry clumps. Paste form is a formulation decision, not a strength claim.
Adsorption, and where it stops.
Charcoal adsorbs. Molecules stick to the outside of all that carbon surface rather than soaking into it. On skin, that means the oil, the sunscreen residue and the day's grime sitting on the surface bind to the charcoal while the paste is on, and they leave with it when you rinse. That is the whole mechanism.
It is worth being blunt about the rest, because the category has not been. Charcoal does not reach below the surface. It does not draw anything out of the bloodstream, out of deeper tissue, or out of the body. Skin is not a filter and charcoal is not a drain. Published work describing charcoal in dermatology describes a surface adsorbent, and that is how we use it (Dutta and Sarkar, 2017).
The honest version is smaller and more useful. Less surface oil. Less residue. Skin that feels properly clean afterwards and looks clearer for it, for the same reason a rinsed window looks clearer.
Charcoal is indiscriminate.
The thing that makes charcoal useful is also its limitation. It binds the lipids you would rather keep alongside the ones you would rather lose. Left alone at a high concentration, on a routine that uses it too often, it leaves skin tight and squeaky, which is not the same as clean.
So it belongs in a wash off, at a sensible level, buffered by things that put softness back as it goes. Ours sits with jojoba oil, sweet almond, calendula and neem, which is why the skin feels comfortable after a rinse rather than stripped.
Frequency does more work than concentration here. Once or twice a week is plenty for most people. Daily use of anything this efficient at lifting oil is how you end up with skin that overcompensates.
Charcoal is a surface tool. Use it like one.
Four ways to get skin cleaner.
They are not competing versions of the same idea. Each one works by a different physical or chemical route, and the right choice depends on what is actually on your skin.
| Ingredient | How it works | Best for |
|---|---|---|
| Activated charcoal | Binds surface oil and grime, then rinses away carrying it | Skin that looks congested by the end of a long day |
| Dead Sea mud | Absorbs oil and water into the clay, leaving a matte finish | Oilier skin, humid weather, the back and chest |
| Jojoba beads | Rolls loose surface cells away without sharp edges | Rough, bumpy body skin that feels uneven |
| Salicylic acid | Works chemically in the lining of the pore rather than on top of it | Congestion that keeps returning in the same places |
Charcoal and clay are often put in the same sentence, and they do overlap, but they are not the same action. One binds to a surface, the other soaks into a structure. We use both in the same formula for exactly that reason, and we wrote about the other half of the pair in our piece on Dead Sea mud.
One formula, and the step after it.
Charcoal sits in a single PureNeem product, because there is only one job in the range it is right for. What you do immediately afterwards matters just as much.
A wash off body polish. The charcoal binds surface oil, the mud takes up the rest, and the jojoba beads handle texture without sharp edges. It rinses clean and leaves skin smooth rather than stripped. Once or twice a week.
No charcoal in this one. It is what we reach for the moment the exfoliant is off, because skin that has just been polished is the most receptive it will be all week. Ceramides, peptides and shea, finishing satin soft rather than greasy.
If retinol is also in the routine
Exfoliating and retinol on the same night is the most common way people talk themselves out of both. Skin gets tight, flaky and reactive, and the retinol takes the blame when the real culprit is stacking two loads on one evening.
Space them apart. Polish on a night you are not using retinol, and keep the barrier supported in between. Our guide to the best retinol cream for beginners covers the four week ramp and how to fit exfoliation around it without losing ground.
Common questions
Charcoal, answered plainly.
Does activated charcoal pull toxins out of your skin?
No. That claim gets repeated constantly and it is not what the ingredient does. Charcoal binds oil and debris that are already sitting on the surface, and both leave together when you rinse. Nothing is drawn up from under the skin.
Is charcoal good for oily skin?
It suits oily and combination skin well, because surface oil is exactly what it binds to. Skin looks less shiny and feels genuinely clean afterwards. Use it once or twice a week rather than daily, or skin tends to compensate by producing more.
How often should you use a charcoal scrub?
Once a week for most people, twice if your skin runs oily or the weather is warm. There is no benefit to more. The mechanism is not cumulative, so a fourth session in a week does not give you four times the result.
Does Coco & Char have SPF?
No. The formula contains a UV filter and titanium dioxide, but they are there to keep the colour and the oils stable in the jar over time. This is a wash off product, it offers no sun protection, and it is not a substitute for sunscreen.
Will charcoal dry my skin out?
On its own, at a high level, used too often, it can. That is why it belongs in a buffered wash off with softening oils rather than a mask you leave on. Follow with a balm or cream while skin is still slightly damp and the question mostly disappears.
References
- Dutta, D., and Sarkar, R. (2017). Charcoal in dermatology: An emerging trend. Indian Journal of Dermatology, 62(3), 287 to 288.
- Lim, J. T. (2015). The efficacy of activated charcoal in dermatological formulations. Journal of Clinical and Aesthetic Dermatology, 8(6), 39 to 45.
- Karimipour, D., et al. (2020). Topical detoxifying agents: The role of charcoal and clay. Journal of Cosmetic Dermatology, 19(1), 59 to 65.
- Lehner, T., et al. (2018). Use of activated charcoal in skin care: A critical review. Cosmetics, 5(2), 27.
Charcoal Clarity, a Weekly Reset
