Compare · Ingredients

Cica vs Glycerin

Cica: Used in soothing moisturizers; ingredient-specific clinical evidence is limited. Glycerin: Attracts water into the outer skin to relieve dryness.

Research updated 2026-10-25

Five centella creams on white, a green-tinted jar plus tubes labeled Madagascar Centella, Madeca Cream and Cica Cream Plus

Five moisturizer bottles containing glycerin lined up on white, including a bottle of pure vegetable glycerin

Which one?At a glance What it helps Diagrams Using both Strengths Results Safety How it works Products Questions

Which one is right for you?

Choose Cica if…

Consider for a gentle moisturizer; check the complete formula and your tolerance.

Sensitive, easily irritated skin
You want a soothing moisturizer
No known plant allergies

Choose Glycerin if…

Choose for everyday hydration in a moisturizer that feels comfortable.

Everyday hydration
Dry or tight skin
A simple, fragrance-free routine

Often combined

Can you use both?

Often found together in calming moisturizers.

At a glance

● Cica

● Glycerin

Type

Centella asiatica extract family

Humectant

What it does

Used in soothing moisturizers; ingredient-specific clinical evidence is limited.

Attracts water into the outer skin to relieve dryness.

Best for

Sensitive Skin; Wrinkles and Fine Lines

Dry Skin; Barrier Support; Eczema

Studied concentrations

0.1% madecassoside with 5% vitamin C in a small photoaging trial.

Moisturizer formulas vary; a percentage alone does not rank performance.

When to use

Morning or night, as directed by the finished product.

Morning or night, as directed by the finished product.

Time to results

Comfort may improve quickly; reassess persistent dryness

Comfort may improve quickly; reassess persistent dryness

Irritation

Can cause a contact rash; avoid assuming botanical products are allergy-free.

Usually comfortable; a sticky feel or stinging can come from the complete formula.

Sensitive skin

Choose a simple formula and test a small area first. Individual tolerance matters more than an ingredient’s reputation for being gentle.

Choose a simple formula and test a small area first. Individual tolerance matters more than an ingredient’s reputation for being gentle.

Available

Cosmetic or OTC products; some high-strength procedures are separate treatments.

Cosmetic or OTC products; some high-strength procedures are separate treatments.

What it helps

Compare uses by strength of evidence. Evidence level describes confidence in a benefit, not its size.

Evidence level

Cica

Glycerin

Moderate evidenceSome supportive research

—

The front of one shin on pale skin. The surface is pink with fine white flaking and a few shallow cracks, and the skin around it is even in tone.

Dry Skin

Controlled testing supports increased outer-skin hydration.

a very close view of irritated dry skin with fine flaking and no identifiable body part on light skin.

Barrier Support

Supports a moisturizing formula; petrolatum contributed more directly to reduced water loss.

Limited evidenceEarly or small studies

Sensitive Skin on light skin.

Sensitive Skin

Some formulas may feel comfortable, but an extract alone is not a proven treatment.

A relaxed forehead with faint shallow horizontal fine lines.

Wrinkles and Fine Lines

A small madecassoside/vitamin C trial reported improvement; the ingredients cannot be separated.

Extreme close-up of light skin in an active eczema flare, too close to tell which part of the body it is. Blotchy pink-red inflammation covers the whole frame with no clear edge, with small raised bumps, fine dry scale and a few fresh scratch marks.

Eczema

Useful moisturizing support; glycerin alone is not a treatment for an inflamed eczema flare.

Insufficient evidence

Scars on light skin.

Scars

The cited combination photoaging study did not test scar treatment.

Inflamed acne on light skin. The spots sit in a patch of pink, and the ring of redness around each one is easy to see. A few have a yellow-white head, and the skin between them is dry and flaking.

Acne

The reviewed sources do not establish this ingredient as a treatment for this concern.

Flat tan patches with soft irregular edges across the forehead and upper cheek of an adult with light skin, the surface completely smooth.

Melasma

The reviewed sources do not establish this ingredient as a treatment for this concern.

Sensitive Skin on light skin.

Sensitive Skin

The reviewed sources do not establish this ingredient as a treatment for this concern.

Inflamed acne on light skin. The spots sit in a patch of pink, and the ring of redness around each one is easy to see. A few have a yellow-white head, and the skin between them is dry and flaking.

Acne

The reviewed sources do not establish this ingredient as a treatment for this concern.

Flat tan patches with soft irregular edges across the forehead and upper cheek of an adult with light skin, the surface completely smooth.

Melasma

The reviewed sources do not establish this ingredient as a treatment for this concern.

How it works

Cica mechanism diagram. Contains plant compounds: Extracts may include madecassoside and related molecules. Repair signaling is being studied: Laboratory findings do not guarantee clinical repair. — Open full-size diagram
Diagram explanation and sources
Contains plant compounds: Extracts may include madecassoside and related molecules. Repair signaling is being studied: Laboratory findings do not guarantee clinical repair.
Schematic illustration; not a measurement of skin penetration. Effects vary with ingredient identity and formulation. Some illustrated pathways are experimental; laboratory findings do not establish a clinical treatment benefit.
Source 1

Glycerin mechanism diagram. Attracts and holds water: Glycerin acts as a humectant in the stratum corneum. Works within a formula: Emollients and occlusives help retain that water. — Open full-size diagram
Diagram explanation and sources
Attracts and holds water: Glycerin acts as a humectant in the stratum corneum. Works within a formula: Emollients and occlusives help retain that water.
Schematic illustration; not a measurement of skin penetration. Effects vary with ingredient identity and formulation.
Source 1 · Source 2

Using both in one routine

Built from where each one usually sits in a routine. Introduce one at a time.

Morning

Step 1

Cleanser

Step 2

CicaMorning or night

Step 3

GlycerinMorning or night

Step 4

Sunscreen

Night

Step 1

Cleanser

Step 2

CicaMorning or night

Step 3

GlycerinMorning or night

Strengths and forms

Concentrations

Cica usually means Centella asiatica extract, a mixture whose composition varies with extraction and standardization. There is no established percentage scale that makes different cica products equally potent.

Choosing a strength: Check whether the label names whole Centella extract, madecassoside, asiaticoside, or another purified compound.

Higher strengths: A higher extract percentage does not necessarily mean more of the compounds studied in clinical research.

Formula matters: A study of 0.1% madecassoside with 5% vitamin C cannot be used as a recommended percentage for whole cica extract.

Glycerin works as part of a moisturizer’s complete formula. The U.S. skin-protectant drug range is 20–45%, but this is not a minimum needed for a cosmetic moisturizer to hydrate skin.

20–45%

U.S. skin-protectant drug range

A labeling category for qualifying drug products, not a target range for every face cream or serum.

Choosing a strength: Choose a moisturizer that feels comfortable and combines water-binding ingredients with suitable oils or occlusives.

Higher strengths: A higher glycerin percentage is not automatically a better moisturizer; texture, tackiness and the rest of the formula matter.

Formula matters: Glycerin and petrolatum can complement each other. A glycerin percentage alone does not describe how well the whole cream reduces dryness.

Forms

Cream · Serum · Mask

Moisturizer · Serum · Pure glycerin

When you’ll see results

Approximate windows, not promises.

● Cica

● Glycerin

First few weeks

First few weeksSkin may feel softer soon after use; relief depends on the formula.

First few weeksSkin may feel softer soon after use; relief depends on the formula.

4–8 weeks

4–8 weeksJudge hydration, comfort and whether dryness is recurring.

4–8 weeksJudge hydration, comfort and whether dryness is recurring.

8–12 weeks

8–12 weeksPersistent cracking, itch or a rash needs reassessment.

8–12 weeksPersistent cracking, itch or a rash needs reassessment.

3–6 months

3–6 monthsContinue if comfortable; hydration usually requires ongoing use.

3–6 monthsContinue if comfortable; hydration usually requires ongoing use.

6–12 months

6–12 monthsMoisturizing does not establish reversal of structural ageing or scars.

6–12 monthsMoisturizing does not establish reversal of structural ageing or scars.

Safety and sensitive skin

Common reactions

Can cause a contact rash; avoid assuming botanical products are allergy-free.

Usually comfortable; a sticky feel or stinging can come from the complete formula.

When to stop

Stop for persistent burning, swelling, blistering or a new rash. Seek urgent care for breathing difficulty or a severe allergic reaction.

Stop for persistent burning, swelling, blistering or a new rash. Seek urgent care for breathing difficulty or a severe allergic reaction.

Sensitive or inflamed skin

Choose a simple formula and test a small area first. Individual tolerance matters more than an ingredient’s reputation for being gentle.

Choose a simple formula and test a small area first. Individual tolerance matters more than an ingredient’s reputation for being gentle.

Important limits

Do not use a cosmetic product as a substitute for diagnosis of an unexplained, changing or persistent skin problem.

Do not use a cosmetic product as a substitute for diagnosis of an unexplained, changing or persistent skin problem.

Pregnancy

Applied to the skin, very little is expected to be absorbed, but ask the doctor managing your pregnancy. Mention it separately if you also take gotu kola by mouth.

Very little passes through the skin, and it has a long history of use in food. Even so, run any routine change past the doctor managing your pregnancy.

How it works

In the skin

On the skin. The finished product delivers cica in a particular vehicle.

Entering skin. No single molecular mass. The 500 Da guideline cannot be applied to this whole ingredient family or mixture.

Conversion. No activation step is established as necessary for its intended topical role.

Skin response. Contains plant compounds studied for inflammatory and repair signalling; extracts are not chemically identical.

Additional effects. Proposed pathways do not establish a measured depth of delivery or clinical benefit beyond the studies cited.

On the skin. The finished product delivers glycerin in a particular vehicle.

Entering skin. Below the 500 Da guideline; delivery still depends on the formula, solubility, stability and skin condition. Size does not prove effectiveness or penetration depth.

Conversion. No activation step is established as necessary for its intended topical role.

Skin response. Binds water in the stratum corneum; emollients and occlusives in the same formula help retain it.

Additional effects. Proposed pathways do not establish a measured depth of delivery or clinical benefit beyond the studies cited.

Getting in

No single molecular mass. The 500 Da guideline cannot be applied to this whole ingredient family or mixture.

Below the 500 Da guideline; delivery still depends on the formula, solubility, stability and skin condition. Size does not prove effectiveness or penetration depth.

Product examples

Cica

SKIN1004 Madagascar Centella Tone Brightening Boosting Toner
La Roche-Posay Cicaplast Baume B5 — A thick repair balm for damaged, irritated skin. For after a procedure, a retinoid overdose, or a barrier meltdown.

Glycerin

CeraVe Diabetics' Dry Skin Relief — Sold on urea. It contains none — and no petrolatum, which makes it arguably weaker than the $12 CeraVe tub beside it.

Common questions

Cica:What should I choose cica for?

Consider for a gentle moisturizer; check the complete formula and your tolerance.

Cica:How strong is the evidence?

A 20-person study tested madecassoside together with vitamin C for six months. It cannot isolate Centella extract or establish treatment of acne, eczema or scars.

Glycerin:What should I choose glycerin for?

Choose for everyday hydration in a moisturizer that feels comfortable.

Glycerin:How strong is the evidence?

A 51-person crossover study separated glycerol, petrolatum and vehicle effects over 12 hours. Hydration measurements do not prove treatment of acne or pigmentation.

Sources

Sources and further reading

Dermapedia on YouTube