Citric acid and peptide-rich plasma
Keep them apart
Apply the peptide serum in the morning and the citric acid at night to prevent the acid from breaking down the peptides. Citric acid makes the skin too acidic, which ruins the firming power of peptides and makes them useless. You can use both if you space them out by several hours or switch to gentler products.
Citric acid products
-
The Ordinary
Salicylic Acid 2% Solution
€7.00
- Dr. Bronner's Pure-Castile Liquid Soap (Baby Unscented)
-
Thayers
Hydrating Milky Toner
€23.00
- Seven Minerals Organic Aloe Vera Gel
-
SkinCeuticals
Blemish + Age Defense
€95.10
- Naturie Hatomugi Skin Conditioner
-
E45
Cream
€6.99
- NATURIUM BHA Liquid Exfoliant 2%
- Dr. Sam's Flawless Cleanser
-
Kiehl's
Calendula Deep Cleansing Foaming Face Wash
€25.45
-
Neutrogena
Hydro Boost Micellar Water
€3.95
- Garnier SkinActive Blackhead Eliminating Scrub
Peptide-rich plasma products
- Eighth Day Regenerative Serum
Questions and answers
Can you use citric acid and peptide-rich plasma together?
No, you should keep citric acid and peptide-rich plasma apart because the low pH of the acid destabilizes the peptides and reduces their activity. Use them in separate steps or routines, such as applying one in the morning and the other at night.
Which goes first, citric acid or peptide-rich plasma?
Keep citric acid and peptide-rich plasma apart by using them in separate steps or routines, such as morning and evening separation. The acidic environment of citric acid may destabilize peptide bonds and reduce their bioactivity if combined.
Are citric acid and peptide-rich plasma good for sensitive skin?
Citric acid and peptide-rich plasma are best kept apart in your routine, especially for sensitive skin, because the low pH of the acid may destabilize the peptide bonds and reduce their effectiveness. Use them in separate steps or routines instead.
Research on citric acid and peptide-rich plasma
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
Cosmetic chemist, cosmetologist, aesthetic products developer
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Co-founder, CEO and CTO
PhD in computer science, 3x US patent holder, ex-Google, ex-Yandex
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Dr. Sofía Perea Pérez, MD, MSc
Medical Board
Aesthetic medicine practitioner, MSc in Longevity and Anti-Aging Medicine
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Medical Board
Specialist dermatologist, MBBS, MD, IFAAD
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Medical Board
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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