We have developed this guide to offer suggestions on how to combine multiple formulations from The Ordinary in a single regimen. In general terms, water formulations should be applied before oil formulations and we recommend using a maximum of three serum formulations in a single regimen. The table below offers a summary on how our formulations can be combined into a regimen:
Use in the AM Use in the PM For Eyes Avoid Contact with Eyes UV Protection Recommended

EUK 134 0.1%

Resveratrol 3% + Ferulic Acid 3%

Targets
Antioxidant Support, Redness Targets
Signs of Aging, Textural Irregularities
Format Anhydrous Solution Format Anhydrous Solution
Regimen Step Before Oils/Creams Regimen Step After Water-Based Serums
Conflicts Do not combine with Direct Acids, Vitamin C (LAA/ELAA), “Buffet” + Copper Peptides 1%, or Resveratrol 3% + Ferulic Acid 3% Conflicts Do not combine with Buffet + Copper Peptides 1% or EUK 134 0.1%
Time of Use AM and PM Time of Use AM and PM

Pycnogenol 5%

Targets
Antioxidant Support, Enhance Skin Hydration, Rebuild Skin Elasticity
Format Anhydrous Solution
Regimen Step Before Oils/Cream, After Water-Based Serums
Conflicts Do not combine with Buffet + Copper Peptides 1%
Time of Use AM and PM

Squalane Cleanser

Targets
Makeup Removal
Format Balm-Like
Regimen Step Before Creams/Oils/Serums
Conflicts
Time of Use AM and PM
 

AHA 30% + BH 2% Peeling Solutions

Azelaic Acid Suspension 10%

Targets
Dullness, Textural Irregularities Targets
Dullness, Uneven Tone, Textural Irregularities, Antioxidant Support
Format Water-Based Serum Format Suspension
Regimen Step Use as a masque and rinse off Regimen Step After Water-Based Serums
Conflicts Do not combine with Direct Acids, Peptides, Retinoids, Vitamin C (LAA/ELAA), 100% Niacinamide Powder or EUK 134 0.1% Conflicts Do not combine with Direct Acids, Peptides, Retinoids, Vitamin C (LAA/ELAA), 100% Niacinamide Powder or EUK 134 0.1%
Time of Use 1-2 times a week, Ideally PM Time of Use Ideally PM
 

Glycolic Acid 7% Toning Solution

Latic Acid 5% + HA

Targets
Dullness, Uneven Tone, Textural Irregularities Targets
Uneven tone, Textural Irregularities, Fine Lines
Format Water-Based Serum Format Water-Based Serum
Regimen Step After cleansing, before serums Regimen Step Before Oils/Cream
Conflicts Do not combine with Direct Acids, Peptides, Retinoids, Vitamin C (LAA/ELAA), 100% Niacinamide Powder or EUK 134 0.1%. Conflicts Do not combine with Direct Acids, Peptides, Retinoids, Vitamin C (LAA/ELAA), 100% Niacinamide Powder or EUK 134 0.1%.
Time of Use Ideally PM Time of Use Ideally PM
 

Latic Acid 10% +HA

Mandelic Acid 10% +HA

Targets
Uneven tone, Textural Irregularities, Fine Lines Targets
Dullness, Uneven Tone, Textural irregularities
Format Water-Based Serum Format Water-Based Serum
Regimen Step Before Oils/Creams Regimen Step Before Oils/Creams
Conflicts Do not combine with Direct Acids, Peptides, Retinoids, Vitamin C (LAA/ELAA), 100% Niacinamide Powder or EUK 134 0.1% Conflicts Do not combine with Direct Acids, Peptides, Retinoids, Vitamin C (LAA/ELAA), 100% Niacinamide Powder or EUK 134 0.1%
Time of Use Ideally PM Time of Use Ideally PM
 

Salicylic Acid 2% Masque

Salicylic Acid 2% Solution

Targets
Lackluster Tone, Textural Irregularities Targets
Lackluster Tone, Appearance of Blemishes
Format Paste-like Format Water-Based Serum
Regimen Step Use as a masque and rinse off Regimen Step After cleansing, before creams
Conflicts Do not combine with Direct Acids, Peptides, Retinoids, Vitamin C (LAA/ELAA), 100% Niacinamide Powder or EUK 134 0.1% Conflicts Do not combine with Direct Acids, Peptides, Retinoids, Vitamin C (LAA/ELAA), 100% Niacinamide Powder or EUK 134 0.1%
Time of Use 1-2 times a week, Ideally PM Time of Use AM and PM

Multi-Peptide Serum for Hair Density

Targets
Visible hair thickness, density & fullness
Format Water-Based Serum
Regimen Step Apply a few drops, or as needed, and massage into clean, dry scalp thoroughly. This formula is a leave on/in treatment.
Conflicts
Time of Use PM
 

“B” Oil

100% Organic Cold-Pressed Borage Seed Oil

Targets
Dehydration, Signs of Irritation, Uneven Tone, Antioxidant Support, Supports Healthy Skin Targets
Redness, Sensitivity, Inflammation, Dehydration, Supports Healthy Skin
Format Oil Format Oil
Regimen Step After Water-Based Serums Regimen Step After Water-Based Serums
Conflicts Conflicts
Time of Use AM and PM Time of Use AM and PM
 

100% Organic Cold-Pressed Moroccan Argan Oil

100% Organic Cold-Pressed Rose Hip Seed Oil

Targets
Dehydration Targets
Dehydration, Dullness, Signs of Aging
Format Oil Format Oil
Regimen Step After Water-Based Serums Regimen Step After Water-Based Serums
Conflicts Conflicts
Time of Use Ideally PM Time of Use Ideally PM
 

100% Organic Chia Seed Oil

100% Cold Pressed Virgin Marula Oil

Targets
Supports Healthy Skin Targets
Supports Healthy Hair, Tames Hair Frizz, Uneven Tone, Dehydration, Supports Healthy Skin, Antioxidant support
Format Oil Format Oil
Regimen Step After Water-Based Serums Regimen Step After Water-Based Serums
Conflicts Conflicts
Time of Use AM and PM Time of Use AM and PM
 

100% Organic Virgin Sea-Buckthorn Fruit Oil

100% Plant Derived Squalane

Targets
Dehydration, Signs of Aging, Inflammation, Antioxidant Support, Supports Healthy Skin Targets
Dehydration
Format Oil Format Pure Molecule
Regimen Step After Water-Based Serums – Mix with other treatments Regimen Step After Water-Based Serums
Conflicts Conflicts
Time of Use Ideally PM Time of Use AM and PM
   

Amino Acid B5

Hyaluronic Acid 2% +B5

Targets
Hydration, Skin Repair, Supports Healthy Skin Targets
Hydration, Skin Repair
Format Water-Based Serum Format Water-Based Serum
Regimen Step Before Oils/Creams Regimen Step Before Oils/Creams
Conflicts Conflicts
Time of Use AM and PM Time of Use AM and PM
   

Marine Hyaluronics

Natural Moisturizing Factors + HA

Targets
Hydration, Skin repair Targets
Hydration, Skin repair
Format Water-Based Serums Format Emulsion
Regimen Step Before Oils/Creams Regimen Step Last step of skincare as a moisturizer (before makeup primer)
Conflicts Conflicts
Time of Use AM and PM Time of Use AM and PM
 

100% Plant Derived Hemi-Squalance

Targets
Supports Healthy Skin, Supports Healthy Hair, Tames Hair Frizz
Format Pure Molecule
Regimen Step After Water-Based Serums
Conflicts
Time of Use AM and PM
 

100% Niacinamide Powder

Alpha Arbutin 2% + HA

Targets
Visible shine, Textural Irregularities, Enlarged Pores Targets
Hyper-pigmentation, Dark Spots
Format Powder Format Water-Based Serum
Regimen Step Mix with other products Regimen Step Before Oils/Creams
Conflicts Do not combine with Vitamin C (LAA/ELAA/Derivatives) or Direct Acids Conflicts
Time of Use AM and PM Time of Use AM and PM
 

Caffeine Solution 5% + EGCG 

Niacinamide 10% Zinc 1%

Targets
Puffiness, Dark Circles Targets
Regulates Sebum, Minimizes Pores
Format Water-Based Serum Format Water-Based Serum
Regimen Step Before Oils/Creams Regimen Step Before Oils/Creams
Conflicts Conflicts Do not combine with Vitamin C (LAA/ELAA/Derivatives)
Time of Use AM and PM Time of Use AM and PM

“Buffet”

“Buffet + Copper Peptides 1%

Targets
Signs of Aging, Firming Targets
Signs of Aging, Firming, Skin Health
Format Water-Based Serum Format Water-Based Serum
Regimen Step Before Oils/Creams Regimen Step Before Oils/Creams
Conflicts Do not combine with Vitamin C (LAA/ELAA), Direct Acids Conflicts Do not combine with Vitamin C (LAA/ELAA), Direct Acids, or Strong Antioxidants
Time of Use AM and PM Time of Use AM and PM
 

Argireline Solution 10%

Matrixyl 10% +HA

Targets
Signs of Aging Targets
Fine Lines, Wrinkles
Format Water-Based Serum Format Water-Based Serum
Regimen Step Before Oils/Creams Regimen Step Before Oils/Creams
Conflicts Do not combine with Vitamin C (LAA/ELAA), Direct Acids Conflicts Do not combine with Vitamin C (LAA/ELAA), Direct Acids
Time of Use AM and PM Time of Use AM and PM
 

Granactive Retinoid 2% in Squalane

Granactive Retinoid 5% in Squalane

Targets
Signs of Aging, Textural Irregularities Targets
Signs of Aging, Textural Irregularities
Format Anhydrous Solution Format Anhydrous Solution
Regimen Step Before Oils/Cream Regimen Step Before Oils/Cream
Conflicts Do not combine with other Retinoids, Direct Acids, Vitamin C (LAA/ELAA), or “Buffet” + Copper Peptides 1% Conflicts Do not combine with other Retinoids, Direct Acids, Vitamin C (LAA/ELAA), or “Buffet” + Copper Peptides 1%
Time of Use PM Only Time of Use PM Only
 

Granactive Retinoid 2% Emulsion

Retinol 0.2% in Squalane

Targets
Signs of Aging, Textural irregularities Targets
Signs of Aging, Textural irregularities
Format Emulsion Format Anhydrous Solution
Regimen Step Before Oils/Creams Regimen Step Before Oils/Creams
Conflicts Do not combine with other Retinoids, Direct Acids, Vitamin C (LAA/ELAA), or “Buffet” + Copper Peptides 1% Conflicts Do not combine with other Retinoids, Direct Acids, Vitamin C (LAA/ELAA), or “Buffet” + Copper Peptides 1%
Time of Use PM Only Time of Use PM Only
 

Retinol 0.5% in Squalane

Retinol 1% in Squalane

Targets
Signs of Aging, Textural irregularities Targets
Signs of Aging, Textural irregularities
Format Anhydrous Solution Format Anhydrous Solution
Regimen Step Before Oils/Creams Regimen Step Before Oils/Creams
Conflicts Do not combine with other Retinoids, Direct Acids, Vitamin C (LAA/ELAA), or “Buffet” + Copper Peptides 1% Conflicts Do not combine with other Retinoids, Direct Acids, Vitamin C (LAA/ELAA), or “Buffet” + Copper Peptides 1%
Time of Use PM Only Time of Use PM Only

Mineral UV Filters SPF 15 with Antioxidants

Mineral UV Filters SPF 30 with Antioxidants

Targets
SPF 15 Protection, Antioxidant Support, Dehydration, Signs of Irritation Targets
SPF 30 Protection, Antioxidant Support, Dehydration, Signs of Irritation
Format Emulsion Format Emulsion
Regimen Step Last step in skincare regimen, before makeup Regimen Step Last step in skincare regimen, before makeup
Conflicts Do not combine with products containing Niacinamide, Peptides, Direct Acids, Retinoids, or EUK 134 0.1% Conflicts
Time of Use AM Time of Use AM

100% L-Ascorbic Acid Powder

Ascorbic Acid 8% + Alpha Arbutin 2%

Targets
Uneven Tone, Signs of Aging, Antioxidant Support Targets
Hyper-pigmentation, Dark Spots, Uneven Tone, Signs of Age, Antioxidant Support
Format Powder Format Anhydrous Solution
Regimen Step Mix with other treatments Regimen Step After Water-Based Serums
Conflicts Do not combine with products containing Niacinamide, Peptides, Direct Acids, Retinoids, or EUK 134 0.1% Conflicts Do not combine with products containing Niacinamide, Peptides, Direct Acids, Retinoids, or EUK 134 0.1%
Time of Use Ideally PM Time of Use AM and PM
   

Granactive Retinoid 2% Emulsion

Retinol 0.2% in Squalane

Targets
Dullness, Uneven Tone, Signs of Aging, Antioxidant Support Targets
Dullness, Uneven Tone, Signs of Aging, Antioxidant Support
Format Water-Based Serum Format Oil Solution
Regimen Step Before Oils/Creams Regimen Step After Water-Based Serums
Conflicts Do not combine with products containing Niacinamide Conflicts Do not combine with products containing Niacinamide
Time of Use  AM and PM Time of Use AM and PM
   

Ethylated Ascorbic Acid 15% Solution

Magnesium Ascorbyl Phosphate 10%

Targets
Uneven Tone, Signs of Age, Antioxidant Support Targets
Dullness, Uneven Tone, Signs of Aging, Antioxidant Support
Format Anhydrous Solution Format Emulsion
Regimen Step After Water-Based Serums Regimen Step After Water-Based Serums
Conflicts Do not combine with products containing Niacinamide, Peptides, or EUK 134 0.1% Conflicts Do not combine with products containing Niacinamide
Time of Use  AM and PM Time of Use  AM and PM

Vitamin C Suspension 23% + HA Spheres 2%

Vitamin C Suspension 30% in Silicone

Targets
Uneven Tone, Signs of Age. Antioxidant Support TTargets
Uneven Tone, Signs of Age. Antioxidant Support
Format Suspension Format Suspension
Regimen Step After Water-Based Serums Regimen Step After Water-Based Serums
Conflicts Do not combine with products containing Niacinamide, Peptides, Direct Acids, Retinoids, or EUK 134 0.1% Conflicts Do not combine with products containing Niacinamide, Peptides, Direct Acids, Retinoids, or EUK 134 0.1%
Time of Use Ideally PM Time of Use Ideally PM