Comparison

Isdinceutics Retinal Intense vs Azelac Ru Liposomal Serum

Name: Azelac Ru Liposomal Serum
Brand: Sesderma
Price: 60 USD

ISDIN vs Sesderma — side by side, no bias.

ISDIN

Isdinceutics Retinal Intense

9/10serum

Sesderma

Azelac Ru Liposomal Serum

8.6/10serum

Our pick

Isdinceutics Retinal Intense

9/10 · ISDIN

	Isdinceutics Retinal Intense	Azelac Ru Liposomal Serum
Brand	ISDIN	Sesderma
Category	serum	serum
Editor Rating	9/10 ★	8.6/10
Category	serum	serum
Texture	Concentrated serum	Watery liposomal serum
Finish	Smooth, absorbed	Calmed, brightened, smoothed
Skin Types	Combination Mature	Combination Mature Sensitive Acne-Prone
Targets	Fine Lines Hyperpigmentation Dullness	Hyperpigmentation Redness Acne
Pros	+retinaldehyde — one step from prescription-strength +dual retinoid approach with HPR +bakuchiol provides retinoid synergy without added irritation +ISDIN's dermatological credibility	+azelaic acid + diacetyl boldine + niacinamide — multi-pathway pigmentation stack +rosacea-friendly — tolerated by skin types that hydroquinone or strong retinoids aren't +liposomal delivery reduces sting and photo-irritation +appropriate for melasma, PIH, and rosacea-related hyperpigmentation
Cons	−premium pricing −still requires sun protection compliance −may cause initial retinoid adjustment period −fragrance-free but not preservative-free	−$60 for 30ml is premium pricing −azelaic acid initial use can cause mild tingling in very reactive skin −diacetyl boldine's clinical evidence base is smaller than tranexamic acid or hydroquinone −the brightening effect builds over 8-12 weeks — patience required
Verdict	ISDIN's retinaldehyde powerhouse — a step above retinol in the vitamin A hierarchy. Retinal (retinaldehyde) converts to retinoic acid in one step instead of two, meaning faster results with less irritation than prescription tretinoin. ISDIN pairs it with HPR (hydroxypinacolone retinoate) for a dual-retinoid approach, plus bakuchiol as a botanical synergist and hyaluronic acid for hydration. The Spanish derm brand's most serious anti-aging product.	Sesderma's anti-pigmentation hero — and Spanish dermatologists' favorite alternative to hydroquinone for melasma, post-acne marks, and rosacea-related hyperpigmentation. The active stack pairs azelaic acid (the gentle-but-effective tyrosinase inhibitor and anti-inflammatory) with diacetyl boldine ('RU', a Boldea boldus-derived brightener) and niacinamide for sebum regulation and tone-evening, plus a low dose of glycolic acid for gentle resurfacing. All carried in liposomal phosphatidylcholine for deeper delivery without irritation — meaningful for the rosacea and sensitive-skin users that traditional pigmentation actives often can't tolerate. At $60 for 30ml, premium pricing — but the multi-active stack and the rosacea-friendly profile make it competitive with much more expensive prescription alternatives.

Ingredient Breakdown

Only in Isdinceutics Retinal Intense

Retinaldehyde Hyaluronic Acid Vitamin E (Tocopherol)

Only in Azelac Ru Liposomal Serum

Azelaic Acid Niacinamide Glycolic Acid

View Isdinceutics Retinal Intense View Azelac Ru Liposomal Serum Compare other products →

Isdinceutics Retinal Intense

Azelac Ru Liposomal Serum

Brand

ISDIN

Sesderma

Category

serum

Texture

Concentrated serum

Watery liposomal serum

Finish

Smooth, absorbed

Calmed, brightened, smoothed

Skin Types

Combination Mature

Combination Mature Sensitive Acne-Prone

Targets

Fine Lines Hyperpigmentation Dullness

Hyperpigmentation Redness Acne

Pros

+retinaldehyde — one step from prescription-strength
+dual retinoid approach with HPR
+bakuchiol provides retinoid synergy without added irritation
+ISDIN's dermatological credibility

+azelaic acid + diacetyl boldine + niacinamide — multi-pathway pigmentation stack
+rosacea-friendly — tolerated by skin types that hydroquinone or strong retinoids aren't
+liposomal delivery reduces sting and photo-irritation
+appropriate for melasma, PIH, and rosacea-related hyperpigmentation

Cons

−premium pricing
−still requires sun protection compliance
−may cause initial retinoid adjustment period
−fragrance-free but not preservative-free

−$60 for 30ml is premium pricing
−azelaic acid initial use can cause mild tingling in very reactive skin
−diacetyl boldine's clinical evidence base is smaller than tranexamic acid or hydroquinone
−the brightening effect builds over 8-12 weeks — patience required

Verdict

ISDIN's retinaldehyde powerhouse — a step above retinol in the vitamin A hierarchy. Retinal (retinaldehyde) converts to retinoic acid in one step instead of two, meaning faster results with less irritation than prescription tretinoin. ISDIN pairs it with HPR (hydroxypinacolone retinoate) for a dual-retinoid approach, plus bakuchiol as a botanical synergist and hyaluronic acid for hydration. The Spanish derm brand's most serious anti-aging product.

Sesderma's anti-pigmentation hero — and Spanish dermatologists' favorite alternative to hydroquinone for melasma, post-acne marks, and rosacea-related hyperpigmentation. The active stack pairs azelaic acid (the gentle-but-effective tyrosinase inhibitor and anti-inflammatory) with diacetyl boldine ('RU', a Boldea boldus-derived brightener) and niacinamide for sebum regulation and tone-evening, plus a low dose of glycolic acid for gentle resurfacing. All carried in liposomal phosphatidylcholine for deeper delivery without irritation — meaningful for the rosacea and sensitive-skin users that traditional pigmentation actives often can't tolerate. At $60 for 30ml, premium pricing — but the multi-active stack and the rosacea-friendly profile make it competitive with much more expensive prescription alternatives.