Kojic Acid, Turmeric and Niacinamide: What Each One Does

A plain-English guide to the kojic acid, turmeric, niacinamide, AHA and PHA in Peel Shot: what each does, what the research says and where evidence is still early.

5 min readSep 26, 2026CloudSense
Peel Shot bottle with turmeric powder and a clear gel swatch

Kojic acid, turmeric, niacinamide, AHA, PHA. Ingredient lists read like a chemistry quiz, and most product pages skip straight to the promises. Here is what each ingredient in Peel Shot actually does, what the research says, and where the evidence is still thin.

What is kojic acid?

Kojic acid is a compound produced by certain fungi during fermentation. It has been used in cosmetics for decades, mostly for one reason: it helps even the look of skin tone.

In lab studies, kojic acid slows down tyrosinase, an enzyme involved in making melanin, the pigment that gives skin its color. A 2019 review describes it as a common ingredient in creams, lotions and soaps for exactly that reason.

The honest caveat: a large review of tyrosinase inhibitors notes that results on real skin have been more mixed than results in the lab. That is why we talk about kojic acid as helping the look of a more even tone with consistent use, not as a quick fix.

What does turmeric do for skin?

Turmeric has a long history in traditional beauty rituals. Its golden color comes from curcumin, the compound most studies focus on.

The research is early. A 2016 systematic review of clinical studies found early evidence that turmeric and curcumin products may support skin, but concluded the published studies are limited and more work is needed. Most of those studies used specific curcumin formulas, not a rinse-off body exfoliant.

So in Peel Shot, turmeric is there for what it is known for: a warm, radiant-looking finish and a nod to a very old tradition. We do not claim more than that.

CloudSense Peel Shot bottle lying on its side next to turmeric powder and a clear gel swatch
Turmeric and the clear gel texture that rolls up as you massage.

Why is niacinamide in an exfoliant?

Niacinamide is a form of vitamin B3, and it plays two roles here.

Barrier support. Exfoliating removes old cells, so it helps to have an ingredient that supports what is left behind. In a 2000 study, niacinamide increased ceramide production in cultured skin cells, and topical niacinamide raised ceramide levels in the skin's outer layer. Ceramides are part of what keeps skin feeling soft and comfortable.

Even-looking tone. Niacinamide works differently from kojic acid. Lab research found it reduces the transfer of pigment from the cells that make it to the surface cells that show it, and a small clinical study on facial skin saw a more even look after four weeks. Kojic acid and niacinamide act at different steps, which is why they pair well.

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What do AHA and PHA do?

These are the exfoliants. AHAs (alpha hydroxy acids) loosen the bonds that hold dull, dead cells on the surface so they can be rinsed away. PHAs (polyhydroxy acids) do the same job more gently.

In a 12-week study on facial skin, a PHA regimen and a glycolic acid (AHA) regimen both improved the look of skin, but the PHA regimen caused less stinging and burning. Pairing both gives you effective exfoliation with a softer feel.

Clearing buildup also matters for the other ingredients. Kojic acid and niacinamide do their best work on skin that is not buried under dull layers.

Every Peel Shot ingredient at a glance

Ingredient Its job in Peel Shot What research suggests Honest caveat
Kojic acid Helps even the look of tone Slows tyrosinase in lab studies Results on skin are more mixed than in the lab
Turmeric Warm, glowing-looking finish Early evidence for curcumin products and skin Studies are limited and used different forms
Niacinamide Barrier support, even-looking tone Reduced pigment transfer in lab and facial studies; supported ceramides Most research is on facial skin
AHA Loosens dull buildup Well-established chemical exfoliant Increases sun sensitivity while in use
PHA Gentler exfoliation Better tolerated than glycolic acid in one 12-week study Facial research, not body research
A creator raises her arm to show her underarm. The clip is in Spanish and includes an on-screen note that results vary from person to person.

Why a rinse-off body format?

CloudSense Peel Shot — Kojic Acid + Turmeric Exfoliating Spray puts these five ingredients into a trigger bottle that covers large areas fast: underarms, knees, elbows, inner thighs, heels, the back of the neck, the external bikini line and your back.

You spray it on dry skin, massage for 30–60 seconds until the gel rolls, then rinse. The short contact time keeps the routine simple, and the gentle massage keeps friction low.

Kojic acid safety: what to know before you start

  • Patch test 24 hours before first use. Some people find kojic acid or acids in general irritating.
  • Wear SPF on exposed areas the next day. AHAs can increase sun sensitivity. In one study, daily 10% glycolic acid made skin burn more easily, and the effect faded about a week after stopping.
  • Skip broken, irritated, sunburned or freshly shaved skin. Wait 24–48 hours after shaving or hair removal.
  • Start 2–3 nights a week. Stop if you notice lasting redness or burning.
CloudSense Peel Shot bottle glowing against an orange background
Peel Shot, 200 ml / 6.76 fl oz. A cosmetic product; individual results vary.

Ingredient FAQ

Is kojic acid natural?

It is produced by certain fungi during fermentation. "Natural" does not automatically mean gentle, which is why a patch test still matters.

Can I use kojic acid with niacinamide?

Yes. They work at different steps and are combined in Peel Shot on purpose.

Where can I use Peel Shot?

Underarms, elbows, knees, heels, inner thighs, the back of the neck, the external bikini line and your back. It is made for body skin.

Can I use Peel Shot with retinol?

Not on the same area and night. Stacking exfoliation with retinoids can increase dryness.

How long before I see a difference?

Texture often feels smoother after the first few uses. A more even look takes consistent use over weeks, and results vary.

Good ingredients only work if you use them consistently. Your first order comes with a 100-day money-back guarantee, so you have more than three months to decide whether Peel Shot earns a spot on your shelf.

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Sources: Cabanes et al., kojic acid and tyrosinase (1994); Saeedi et al., kojic acid in cosmetic preparations (2019); Zolghadri et al., review of tyrosinase inhibitors (2019); Vaughn et al., turmeric and skin: systematic review (2016); Tanno et al., niacinamide and skin barrier lipids (2000); Hakozaki et al., niacinamide and melanosome transfer (2002); Grimes et al., PHA vs AHA regimen comparison (2004); Kaidbey et al., glycolic acid and UV sensitivity (2003)

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