Collagen peptide and citric acid
Keep them apart
Use them at different times of day, applying the acid first and the peptides later, because mixing them together cancels out their benefits. The acid is too sour and breaks down the peptides so they cannot firm your skin. You can easily fix this by using the acid in the morning and the peptides at night.
Collagen peptide products
- SkinMedica TNS Advanced+ Serum
- Hero Mighty Patch
- The INKEY List Collagen Peptide Serum
- Olay Regenerist Collagen Peptide 24 Serum
- No7 Pure Retinol 1% Night Concentrate
-
No7
Protect & Perfect Intense Advanced Night Cream
拢16.77
-
Olay
Regenerist Collagen Peptide 24 MAX Face Moisturizer
拢16.00
- No.7 Pure Retinol 0.3% Night Concentrate
- Olay Collagen Peptide 24 Eye Cream
Citric acid products
-
The Ordinary
Salicylic Acid 2% Solution
拢4.88
- Dr. Bronner's Pure-Castile Liquid Soap (Baby Unscented)
-
Thayers
Hydrating Milky Toner
拢22.50
- Seven Minerals Organic Aloe Vera Gel
-
SkinCeuticals
Blemish + Age Defense
拢114.00
- Naturie Hatomugi Skin Conditioner
-
E45
Cream
拢2.75
-
NATURIUM
BHA Liquid Exfoliant 2%
拢19.00
- Dr. Sam's Flawless Cleanser
-
Kiehl's
Calendula Deep Cleansing Foaming Face Wash
拢24.75
-
Neutrogena
Hydro Boost Micellar Water
拢7.02
-
Garnier SkinActive
Blackhead Eliminating Scrub
拢4.00
Questions and answers
Can you use collagen peptide and citric acid together?
No, you should keep collagen peptide and citric acid apart in your routine because the acidic environment can break down the peptide bonds and reduce their effectiveness. Use them in separate steps or alternate routines instead.
Which goes first, collagen peptide or citric acid?
Keep collagen peptide and citric acid apart in your routine because the acidic environment of citric acid destabilizes peptide bonds. Use them in separate steps or routines, such as separating them into AM and PM.
Are collagen peptide and citric acid good for sensitive skin?
Collagen peptide and citric acid should be kept apart in your routine because the acidic environment of citric acid may destabilize peptide bonds and reduce their bioactivity. Use them in separate steps or routines, such as AM and PM, to protect sensitive skin from irritation.
Research on collagen peptide and citric acid
Behind this pairing advice
Lovi checks every pairing with brand-independent rules our dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update.
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Co-founder, Medical Director
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Dr. Sof铆a Perea P茅rez, MD, MSc
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Medical Board
Specialist dermatologist, MBBS, MD, IFAAD
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Cosmetic chemist, SCS, IFSCC member
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Medical Board, Medical Advisor
Dermatology MD
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Elina Nazarenko, MD
Medical Board
Dermatology and diagnostic consultant
-

Victoria Derkova, MS
Medical Board
Cosmetic chemist, cosmetic development technologist
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