• What is Retinoid 5 % Squalane used For?  Signs of ageing, textural irregularities
• When do I use this?  Use PM only.  Why?  Because retinoids can make the skin more sensitive to UV radiation.  Use a really good SPF.
• Where does Retinoid 5% Squalane fit into my routine?  This is an anhydrous solution and used after water based products and before oils/creams.
• What does this conflict with?  This shouldn’t be used with other retinoids.
• Can I use this when pregnant or breastfeeding? It´s best to avoid any skincare products containing retinoids or retinols.
• How strong is this?  This is the high strength, low irritation

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The Ordinary Retinols

Retinol 0.2% in Squalane

• What is retinol 0.2% Squalane use for?  Signs of ageing, textural irregularities.
• When do I use this?  Use PM only. Why? Because retinol can make the skin more sensitive to UV radiation.  Use a really good SPF.
• Where does this fit into my routine? It´s an anhydrous solution.  Use after water based products and before oils/creams.
• Does this conflict with anything? This shouldn’t be used with other products containing retinoids or retinols
• Can I use whilst pregnant or breastfeeding?  It´s best to avoid any skincare products containing retinoids or retinols.
• How strong is this? Low strength with moderate irritation

Retinol 0.5% in Squalane

• What is retinol 0.5% Squalane use for?  Signs of ageing, textural irregularities.
• When do I use this?  Use PM only. Why?  Because retinol can make the skin more sensitive to UV radiation.  Use a really good SPF.
• Where does this fit this into my routine? It´s an anhydrous solution.  Use after water based products and before oils/creams.
• Does this conflict with anything? This shouldn’t be used with other products containing retinoids or retinols
• Can I use whilst pregnant or breastfeeding?  It´s best to avoid skincare products containing retinoids or retinols.
• How strong is this? Moderate strength, high irritation

Retinol 1% in Squalane

• What is retinol 1% Squalane use for?  Signs of ageing, textural irregularities.
• When do I use this?  Use PM only. Why?  Because retinol can make the skin more sensitive to UV radiation.  Use a really good SPF.
• Where do I fit this into my routine? It´s an anhydrous solution.  Use after water based products and before oils/creams.
• Does this conflict with anything? This shouldn’t be used with other products containing retinoids or retinols
• Can I use whilst pregnant or breastfeeding?  It´s best to avoid skincare products containing retinoids or retinols.
• How strong is this? High strength, high irritation

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The Ordinary Vitamin C Range

Deciem have created a complete guide to all their different Vitamin C products here.

Ethylated Ascorbic Acid 15% Solution

• What is Ethylated Ascorbic Acid for? Signs of Ageing, antioxidant support, uneven tone.
• When do I use this? You can use this morning and evening.

• Where does this fit into my regimen? It´s an anhydrous solution and goes after water based solutions but before oils / creams.
• Does this conflict with anything?  You should not use this with  Niacinamide (more molecules) or EUK 134 (antioxidants).

Ascorbic Acid + Alpha Arbutin

• What is Ascorbic Acid + Alpha Arbutin for? Hyper-pigmentation, dark spots, uneven tone, signs of age, antioxidant Support.
• When do I use this? You can use this morning and evening.
• Where does this fit into my regimen? It´s an anhydrous solution and goes after water based products but before oils / creams.
• Does this conflict with anything?  Yes, you should not use this with Niacinamide (more molecules) or EUK 134 (antioxidants).

Vitamin C 23%

• What is The Ordinary Vitamin C 23% for? Uneven tone, signs of age, antioxidant support.
• When do I use this? Preferably in the evening.
• Where does Vitamin C 23% fit into my regimen? It´s a suspension and should go on after water based products.  However, Deciem have said that this should be applied after NMF if using.  If in doubt, send them a message.
• Does this conflict with anything? Niacinamide (more molecules) and EUK 134 (antioxidants).

Vitamin C Suspension 30% in Silicone

• What is The Ordinary Vitamin C 30% for? Uneven tone, signs of age, antioxidant support.
• When do I use this?  Preferably in the evening
• Where does vitamin c 30% fit into my routine? It´s a suspension and should be applied after water based products.
• Does this conflict with anything? Niacinamide (more molecules) & EUK 134 (antioxidants).

Ascorbyl Tetraisopalmitate 20% Vitamin F

• What is Ascorbyl Tetraisopalmitate for? Dullness, uneven tone, signs of ageing, antioxidant support.
• When do I use this? You can use this morning and evening.
• Where does this fit into my regimen? It´s an oil solution (very light) and should be applied after water based solutions.
• Does this conflict with anything? No

Ascorbyl Glucoside (Vit C serum)

• What is Ascorbyl Glucoside for? Dullness, uneven tone, signs of aging, antioxidant support.
• When do I use this? You can use this morning and evening.
• Where does this fit into my regimen? It´s water based so apply as one of your first layers.
• Does this conflict with anything? No.

Magnesium Ascorbyl Phosphate (Vit C Cream)

• What is Magnesium Ascorbyl Phosphate (MAP) for? Dullness, uneven tone, signs of aging, antioxidant support.
• When do I use this? Morning and evening.
• Where does MAP fit into my regimen? It´s an emulsion and goes after your water based products.
• Are there any conflicts? No

100% L-Ascorbic Acid Powder

• What is L-Ascorbic Acid Powder for? Brightens skin, reduces signs of ageing, antioxidant support.
• When do I use this? Preferably evenings only.
• Where do I fit this into my regimen? This is a powder solution and you can mix with other treatments.  Deciem recommend mixing with Resveratrol & Ferulic Acid for a fantastic antioxidant.
• Are there any conflicts? Yes, Niacinamide, EUK 134 and other highly acidic products.

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The Ordinary Acids

Lactic Acid 5%

• What is The Ordinary Lactic Acid 5% for? Uneven tone, textural irregularities, fine Lines.
• When do I use this? Preferably evening only.
• Where does this fit into my regimen? It´s water based so use as one of your first layers and can also be diluted with other products, avoiding conflicting products below.
• Does this conflict with anything? Do not use with other strong acids, EUK 134 (antioxidant) or Peptides Buffet, Buffet + Copper, Matrixyl, Argireline.
• Avoid eye contact

Lactic Acid 10%

• What is The Ordinary Lactic Acid 10% for? Uneven tone, textural irregularities, fine Lines.
• When do I use this? Preferably evening only.
• Where does this fit into my regimen? It´s water based so use as one of your first layers and can also be diluted with other serums avoiding conflicting product below.
• Does this conflict with anything? Do not use with other strong acids, EUK 134 (antioxidant) or Peptides Buffet, Buffet + Copper, Matrixyl, Argireline.
• Avoid eye contact

Azelaic Acid

• Brightens
• Evens skintone

• Texture irregularties
• When & How: PM after water solutions
• Solution: Emulsion

Alpha Lipoic Acid

• Lackluster skin
• Signs of ageing

• 2 or 3 drops over entire face only 2-3 times a week
• When & How: PM, 2-3 times a week
• Solution: Anhydrous

Glycolic Acid

• Brightens skin
• Radiant even tone

• Use PM after cleanse, before moisturisers
• When & How: PM After cleansing, before serums
• Solution: Water

AHA 30% Peeling Solution

• Lackluckster tone
• Texture irregularities
• Blemishes

• When & How: PM only.  Apply to dry skin avoiding eyes.  Leave for no more than 10 minutes once or twice a week. Rinse with lukewarm water, avoid contact with eyes.

Salicylic Acid 2%

• Flights acne
• Evens skintone

• Spot treatment or entire face
• When & How: AM & PM After cleansing, before creams
• Solution: Water

Mandelic Acid

• Dullness
• Uneven Tone
• Textural irregularities
• When & How: PM, before creams / oils
• Solution: Water

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The Ordinary Antioxidants

EUK 134

• Antioxidant Support
• When & How: AM & PM before oils / creams
• Conflicts: Highly acidic formulations of ascorbic acid.
• Solution: Anhydrous

Resveratrol

• Antioxidant Support
• When & How:  AM & PM, before Oils / Creams
• Solution: Anhydrous

Alpha Lipoic Acid

• Lackluster skin
• Signs of ageing
• When & How: PM, 2-3 times a week.  Apply hydrator after if needed.

• Solution: Anhydrous

Pycnogenol 5%

• Antioxidant Support
• Enhances Skin Hydration
• Rebuilds Skin Elasticity
• Solution Anhydrous
• After Water Based Serums but before oils/creams
• AM & PM

The Ordinary Hydration

Hyaluronic Acid

• Hydrates

• Smooths and plumps
• When & How: AM & PM as a first layer before creams & oils
• Solution: Water

Marine Hyaluronics

• Hydration

• Repair
• When & How: AM & PM as a first layer before creams & oils
• Solution: Water

Natural Moisturizing Factors

• Hydrates

• Protects skin from moisture loss
• When & How: AM & PM, last product before primer
• Solution: Emulsion

Borage Oil

• Redness
• Sensitivity
• Inflammation
• Dehydration

• Supports Healthy Skin
• When & How: AM & PM after water solutions
• Solution: Oil

Sea Buckthorn Fruit Oil

• Dehydration
• Signs of Ageing
• Inflammation
• Antioxidant Support

• Supports Healthy Skin
• When & How: Ideally PM, mix with other treatments
• Solution: Oil

Rose Hip Seed Oil

• Hydrates
• Dehydration
• Signs of Dullness
• When & How: PM after water solutions
• Solution: Oil

Marula Oil

• Hydrates

• Radiant tone
• When & How: AM / PM after water solutions
• Solution: Oil

Moroccan Argan Oil

• Hydrates

• Softens skin and hair
• When & How: Ideally PM after water solutions
• Solution: Oil

Plant Derived Squalane

• Hydrates

• Prevents moisture loss
• When & How: AM & PM, after water solutions
• Solution: Oil

Hemi-Squalane

• Supports Healthy Skin & Hair
• Tames Hair Frizz
• Oil Solution
• Use After Water Based Serums
• AM & PM

Amino Acids + B5

• Hydration
• Skin Repair
• Supports Healthy Skin
• When & How: AM & PM, before oils & creams
• Solution:  Water

High Spreadability Primer

• Gives a dewy look

• Make-up lasts longer
• When & How: AM & PM last step before make up
• Solution: Anhydrous

High Adherence Silicone Primer

• Mattifies
• Make-up lasts longer

• Good for large pores
• When & How: AM & PM last step before make up
• Solution: Emulsion

Peptides

Buffet + Copper Peptides

• Signs of Ageing
• Firming

• Skin Health
• When & How:  AM &PM.  At least 30 seconds before or 3o minutes after products containing direct acids, vit c or retinoids.
• Solution: Water
• Conflicts:  Vitamin C (L-Ascorbic Acid and Ethylated Ascorbic Acid) and Direct Acids.  Please see Deciem official website for more information.

Buffet

• Wrinkles
• Dark spots

• Ageing
• When & How: AM & PM before oils / creams
• Solution: Water
• Conflicts:  Vitamin Cs L-Ascorbic Acid and Ethylated Ascorbic Acid and Direct Acids.  Please see Deciem official website for more information.

Argireline Solution

• Softens wrinkles around eyes and forehead
• Signs of Ageing
• When & How: AM & PM, first layer before oils / creams
• Solution: Water

Matrixyl

• Reduces fine lines
• Wrinkles

• Loss of elasticity
• When & How: AM & PM, before oils / creams
• Solution: Water
• Conflicts:  Vitamin C (L-Ascorbic Acid and Ethylated Ascorbic Acid) and Direct Acids.  Please see Deciem official website for more information.

 Other Molecules

Niacinamide 10% plus Zinc 1%

• Regulates sebum

• Minimises pores
• When & How: AM/PM before creams & oils
• Conflicts: Vitamin C
• Solution: Water

Alpha Arbutin

• Fades pigmentation

• Dark spots
• When & How: AM & PM before oils / creams
• Solution: Water

Caffeine Solution

• Reduces dark circles
• Puffiness
• When & How: AM & PM around eyes
• Solution: Water