PHA Toner — Reddit Reviews
Updated November 10, 2026
Redditors love 3% gluconolactone for gentle texture; studies find niacinamide acne evidence uncertain.
What the community says
A 3% gluconolactone toner with 3% niacinamide gives Redditors gentle exfoliation for texture and dullness, often used weekly or a few times weekly. Studies found topical niacinamide acne results uncertain, so dry or barrier-stressed skin should not overdo it.
What this means for you
Backed by 13 threads from r/SkincareAddiction, r/40plusskincare and 4 more.
Read the threads ↓What people love
Watch out for
Product details
Skin Type
Product Traits
Key Ingredients
Based on limited Reddit discussion so far
Where to buy
What the science says
Niacinamide has some evidence for fading dark spots, as all four studies that tested it directly saw patches fade more than with a moisturizer lacking it 1. For acne, niacinamide has some evidence of helping, often working about as well as clindamycin on the skin, though a few studies found no clear difference 2. Niacinamide for signs of aging has some evidence, with two studies reporting firmer, more elastic skin and fewer wrinkles 3. For the skin barrier, the evidence is not proven yet, since only one study tested it directly, and it did show lower water loss 4.
- Niacinamide for hyperpigmentation Some evidence · 17 studies
- Niacinamide for acne Some evidence · 17 studies
- Niacinamide for anti-aging Some evidence · 8 studies
- Niacinamide for skin barrier Not proven yet · 17 studies
Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.
How we grade researchFull ingredient list · 16
The Inkey List PHA Toner ingredients
Water (Aqua / Eau), Propanediol, Gluconolactone, Niacinamide, Pentylene Glycol, Glycerin, Aloe Barbadensis Leaf Juice, Potassium Sorbate, Sodium Benzoate, PPG-26-Buteth-26, PEG-40 Hydrogenated Castor Oil, 1,2-Hexanediol, Caprylyl Glycol, Ethylhexylglycerin, Citric Acid, Sodium Hydroxide
Listed in label order, highest concentration first. Linked ingredients have their own page.
Real Reddit threads — 16 mentions across 13 threads
The Inkey List PHA Toner on Reddit, in one place — 13 threads from r/SkincareAddiction, r/40plusskincare and 4 more, summarized.
“I haven’t tried the Inkey List’s glycolic acid toner but I love their PHA toner and glycolic body stick”
Positive
“I bet their glycolic toner is comparable to TO’s.”
Positive
“I love their PHA toner”
Positive
“The best results I've seen so far have been from the Inkey List PHA toner (I only use it 2-3 times a week to protect my skin barrier)”
Positive
“I'm going to go back for another dedicated session for redness, but am experimenting with products that specifically support redness reduction too.”
Positive
“The best results I've seen so far have been from the Inkey List PHA toner”
Positive
“try a toner or serum to remove dead skin cell and blackheads like the Inkey List PHA toner”
Mentioned
“For PM Routine after cleansing”
Mentioned
“followed by the same niacinamide from the morning”
Mentioned
“But The Inkey List 3% PHA toner has been nice!”
Positive
“It doesn't sting whatsoever.”
Positive
“I have skin that's intolerant to AHAs anyways”
Positive
“I use the PHA toner from the Inkey List, it's super gentle and doesn't cause any irritation for me”
Positive
“helps with the little bit of texture I get.”
Positive
“I use each one 1-2 times a week, not really on any schedule”
Positive
“PM: CeraVe Hydrating Cleanser → Inkey List PHA Toner → The Ordinary Alpha Arbutin 2% + HA → Nivea blue tin.”
Positive
“I wanna keep my routine simple but effective”
Positive
“What would you add/change or prioritize, especially for a more even skin tone and fading pigmentation?”
Positive
