Shop
Connect
Join Our Community
AHA Peeling Concentrate
$45.04/mo
COSMOS Natural
100% Natural Origin
Vegan
AHA Peeling Concentrate
1.01 fl oz (30ml)
A 10% Lactic Acid concentrate that dissolves dead skin cells, fades dark spots, and reveals the brighter, smoother skin underneath. With 1% Hyaluronic Acid working in synergy to hydrate throughout the process, this 100% natural origin exfoliator delivers visible renewal without the dryness other acids cause.
Exfoliates with 10% Lactic Acid for brighter, smoother skin
Hydrates throughout with 1% Hyaluronic Acid
Reduces the appearance of dark spots and fine wrinkles
100% natural origin · COSMOS Natural certified · vegan
Important: Always apply broad-spectrum sunscreen the following morning after use. AHA exfoliants increase sun sensitivity.
First use
Immediate glow
Skin feels smoother by morning
Week 2–3
Tone & texture
Brighter, more even complexion
Week 4+
Dark spots fade
Visible reduction with consistent use
Purchase Option
Free Shipping
30-Day Guarantee
ECOCERT Certified
1
Cleanse your skin
Begin your evening routine with a gentle cleanser. Pat dry with a soft towel.
2
Apply the concentrate
Dispense a small amount onto fingertips. Apply to face and neck in the evening only, avoiding the eye area.
3
Leave on overnight — do not rinse
Allow the concentrate to work while your skin naturally regenerates overnight.
4
Apply sunscreen in the morning
Essential after AHA use. Always protect skin with broad-spectrum SPF the following day. Use 1–2 times per week.
Lactic Acid (10%)
An alpha-hydroxy acid that gently dissolves the bonds holding dead skin cells together, accelerating cell turnover to reveal brighter, smoother skin. Clinically studied for visible improvement in texture and tone.
Sodium Hyaluronate (1%)
Locks in moisture throughout the exfoliation process, preventing the dryness and irritation commonly associated with acid treatments. Skin stays supple and comfortable.
White Tea Leaf Extract
Rich in polyphenols, White Tea shields skin from environmental damage while soothing post-exfoliation sensitivity. Sourced from organic farming.
Sage Leaf Extract
A botanical with natural calming and purifying properties that supports skin health during the renewal process. Sourced from organic farming.
Full Ingredient List (INCI)
Aqua/Water, Lactic Acid, Pentylene Glycol, Potassium Hydroxide, Butylene Glycol, Glycerin†, Sodium Hyaluronate, Camellia Sinensis (White Tea) Leaf Extract*, Salvia Officinalis (Sage) Leaf Extract*
* Ingredients from organic farming · † Made using organic ingredients
* Ingredients from organic farming · † Made using organic ingredients
100%
Natural Origin
Every ingredient is derived from natural sources. No synthetic additives.
2%
Organic Content
Certified organic ingredients included in the formula.
✓
COSMOS Natural
Certified by ECOCERT — the global standard for natural and organic cosmetics.
Also: 100% vegan · cruelty-free · free from parabens and harsh chemicals · ethically sourced botanicals.
The Science
AHA exfoliation — how it actually works
Lactic Acid (10%) — Exfoliation & Renewal
An alpha-hydroxy acid that gently dissolves the bonds holding dead skin cells together, accelerating cell turnover to reveal brighter, smoother skin underneath. Clinically studied for visible improvement in skin texture and tone.
Sodium Hyaluronate (1%) — Hydration During Exfoliation
Locks in moisture throughout the exfoliation process, preventing the dryness and irritation commonly associated with acid treatments. Skin stays supple and comfortable throughout.
White Tea Leaf Extract — Antioxidant Protection
Rich in polyphenols, White Tea shields skin from environmental damage while soothing post-exfoliation sensitivity. Sourced from organic farming for maximum purity.
Sage Leaf Extract — Skin Soother
A botanical with natural calming and purifying properties that supports skin health during the renewal process. Complements the exfoliation action without causing additional irritation.
Why Citadel Skin
Why Citadel Skin stands apart
| Citadel Skin | Typical Brands | |
|---|---|---|
| 100% natural origin ingredients | ✓ | ✗ |
| COSMOS Natural certified | ✓ | ✗ |
| 10% Lactic Acid for visible exfoliation | ✓ | ✗ |
| Hydration built into the formula | ✓ | ✗ |
| 100% vegan & cruelty-free | ✓ | ✗ |
| Antioxidant botanical extracts | ✓ | ✗ |
| Subscribe & save 15% | ✓ | ✗ |
Complete Your Routine
Pairs well with
Peptide Renewal Serum
Use on the evenings you're not exfoliating. Firms and supports collagen overnight.
Hydrating Serum + Multi-HA
Use in the morning after AHA nights. Replenishes moisture and soothes.
All-In-One Facial Oil
Apply after the serum on non-AHA evenings to seal in nourishment overnight.
Customer Reviews
Real results from real customers
★★★★★
"Been using this once a week for a month and my skin tone has evened out noticeably. The dark spot I've had on my cheek for years is visibly lighter. Doesn't sting or peel — just wakes my skin up."
Michelle R.✓ Verified Purchase
★★★★★
"I was nervous about trying an acid but this is so gentle. My skin looks brighter the morning after I use it and my foundation goes on so much smoother. Wish I had started using it sooner."
Natalie K.✓ Verified Purchase
★★★★★
"I've struggled with dull, uneven skin for years. After two weeks of using this twice a week, my skin looks noticeably brighter and my texture has smoothed out. The fact that it doesn't dry me out like other acids is a game changer."
Verified Customer✓ Verified Purchase
FAQ
Questions? We have answers.
The AHA Peeling Concentrate is suitable for all skin types. If you have sensitive skin, start with once per week and increase gradually. Always patch test first.
Most customers notice brighter, smoother skin after 2–3 uses. Visible improvement in dark spots and uneven tone typically appears after 3–4 weeks of consistent use.
No — this is a leave-on treatment. Apply in the evening and leave on overnight. Do not rinse.
AHA exfoliants increase skin's sensitivity to UV light by removing the outer layer of dead skin cells. Always apply broad-spectrum SPF the morning after use to protect your fresh skin.
Yes, but avoid using it on the same night as retinoids or other strong acids. Alternate evenings to prevent over-exfoliation. The Peptide Renewal Serum is a great complement on non-AHA nights.
30-day money back guarantee on all products. If you're not satisfied, reach out and we'll refund you in full. No complicated process, no questions asked.
Reveal the skin underneath.
Brighter, smoother, more even — with 100% natural origin ingredients and no compromise on purity.