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SkinCeuticals C E Ferulic vs Phloretin CF: Which One for Your Skin?

Updated 2026-08-28

SkinCeuticals C E Ferulic (list price around $182 for 1 oz) and Phloretin CF (around $169 for 1 oz) are the two most-recommended antioxidant serums the brand makes, and they are constantly compared because they look interchangeable and are not. Both are morning L-ascorbic-acid vitamin C serums built on the same patented ferulic-acid antioxidant technology, formulated at a low pH so the vitamin C actually penetrates. The difference is who each one is for: C E Ferulic uses a higher 15% vitamin C concentration in a richer base aimed at normal, dry and mature skin, while Phloretin CF uses 10% vitamin C plus 2% phloretin in a lighter base aimed at oily and combination skin and at fading discoloration. Neither is a better product than the other in the abstract — the right pick is decided by your skin type and your main concern.

SkinCeuticals

SkinCeuticals C E Ferulic

SkinCeuticals

SkinCeuticals Phloretin CF

Neither is sold through Amazon. SkinCeuticals does not list Amazon as an authorized retailer and warns that product bought there may be counterfeit, diluted or expired, with its guarantee not honored. Buy direct from SkinCeuticals or an authorized partner listed on skinceuticals.com.

Specs Comparison

Vitamin C
SkinCeuticals C:15% L-ascorbic acid
SkinCeuticals Phloretin:10% L-ascorbic acid
Antioxidant boosters
SkinCeuticals C:1% vitamin E + 0.5% ferulic acid
SkinCeuticals Phloretin:2% phloretin + 0.5% ferulic acid
Best for
SkinCeuticals C:Normal, dry, mature skin
SkinCeuticals Phloretin:Oily, combination skin
Targets
SkinCeuticals C:Fine lines, firmness, dark spots
SkinCeuticals Phloretin:Discoloration, uneven tone, radiance
Texture
SkinCeuticals C:Silky, oil-like
SkinCeuticals Phloretin:Lightweight, fast-absorbing
pH
SkinCeuticals C:2.5–3.0
SkinCeuticals Phloretin:2.5–3.0
Size
SkinCeuticals C:1 fl oz (30 ml)
SkinCeuticals Phloretin:1 fl oz (30 ml)

Pros & Cons

SkinCeuticals C E Ferulic

Pros

  • Highest at-home vitamin C concentration here (15% L-ascorbic acid) — strong on fine lines, firmness and dark spots
  • Vitamin E plus ferulic acid stabilize the vitamin C and boost its antioxidant and daytime UV-defense synergy
  • The most-studied L-ascorbic-acid serum in prestige skincare; an ideal first antioxidant serum for dry or mature skin

Cons

  • The 15% acid concentration and richer, oil-like feel can irritate or sit heavy on oily, combination or very sensitive skin
  • List price around $182 for 1 oz is a real commitment

SkinCeuticals Phloretin CF

Pros

  • 10% L-ascorbic acid plus 2% phloretin is gentler and lighter — sits better on oily and combination skin
  • Formulated specifically for discoloration and uneven tone; phloretin adds its own brightening antioxidant action
  • Faster-absorbing and less likely to pill under sunscreen or makeup

Cons

  • Lower 10% vitamin C means slightly less anti-aging power than C E Ferulic for dry, mature skin
  • Still a prestige price (around $169 for 1 oz) and can tingle on first use

Our Verdict

Match the serum to your skin, not the price tag. Oily or combination skin, or a main goal of fading discoloration: choose Phloretin CF — it is lighter and built for exactly that. Dry, mature or normal skin focused on fine lines and firmness: choose C E Ferulic and its higher 15% vitamin C. Both are pH-optimized L-ascorbic-acid serums with the same 0.5% ferulic acid, so neither choice is a downgrade.

Best for Budget

SkinCeuticals Phloretin CF

Best for Features

SkinCeuticals C E Ferulic

Buying Guide

  • 1Start with your skin type, because that is the real dividing line. C E Ferulic's 15% L-ascorbic acid and richer, oil-like base suit normal, dry and mature skin. Phloretin CF's 10% acid and lighter texture suit oily and combination skin that would find C E Ferulic heavy or irritating.
  • 2If your top concern is hyperpigmentation or an uneven tone, Phloretin CF is formulated around that goal, with 2% phloretin added specifically for discoloration. If your top concern is fine lines, loss of firmness and general antioxidant defense, C E Ferulic's higher vitamin C paired with vitamin E is the stronger match.
  • 3Use either one in the morning on clean, dry skin before moisturizer and sunscreen — the antioxidant-plus-SPF combination is where these serums earn their keep. Give any L-ascorbic-acid serum 8 to 12 weeks of daily use before judging results.
  • 4Both oxidize when exposed to light, air and heat: a serum that has turned deep orange or brown has degraded. Store either away from sunlight and keep the cap tight; refrigeration is not a substitute for good storage.
  • 5Price is close — around $169 for Phloretin CF and around $182 for C E Ferulic per 1 oz at list. Since the gap is small, let skin type and target concern decide rather than the difference.

Honourable Mentions

SkinCeuticals Silymarin CF — The lightest of the three and oil-free — built for oily and blemish-prone skin, adding silymarin and salicylic acid to the same ferulic-acid antioxidant base.

Frequently Asked Questions

Can you use C E Ferulic and Phloretin CF together?
Not at the same time. Both are morning L-ascorbic-acid antioxidant serums that do the same job, so you pick one for your AM routine rather than layering them. Using two low-pH vitamin C serums at once adds irritation risk without extra benefit.
Which is better for oily or acne-prone skin?
Phloretin CF. Its lighter 10% formula absorbs faster and is less likely to feel heavy than C E Ferulic's richer, oil-like base. For very oily or blemish-prone skin, SkinCeuticals also makes Silymarin CF as an even lighter, oil-free option.
Which is better for dark spots and hyperpigmentation?
Both help, but Phloretin CF is formulated specifically for discoloration and uneven tone. C E Ferulic also fades dark spots thanks to its higher 15% vitamin C, so dry or mature skin targeting pigmentation can still choose it.
Is Phloretin CF just a cheaper dupe of C E Ferulic?
No. They share the same ferulic-acid antioxidant technology but are different formulas for different skin types — Phloretin CF swaps vitamin E for 2% phloretin and uses less vitamin C. It is a sibling product, not a budget version.
Is Amazon an authorized SkinCeuticals retailer?
No. SkinCeuticals states on its Authorized Retailers page that Amazon is not an authorized retailer, and warns that product bought there may be counterfeit, diluted or expired, with the brand's guarantee not honored. Buy direct from SkinCeuticals or an authorized partner listed on skinceuticals.com.

Further Reading

Sources

  • Amazon is not an authorized SkinCeuticals retailer; the brand warns product sold there may be counterfeit, diluted or expired and that it will not honor the guarantee. SkinCeuticals — Authorized Retailers

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