Comparison

Skin Reset Serum vs #1 The Serum (Strengthening Serum for Combination Skin)

Name: #1 The Serum (Strengthening Serum for Combination Skin)
Brand: Rationale
Price: 220 USD

Emma Lewisham vs Rationale — side by side, no bias.

Emma Lewisham

Skin Reset Serum

8.9/10serum

Rationale

#1 The Serum (Strengthening Serum for Combination Skin)

8.9/10serum

	Skin Reset Serum	#1 The Serum (Strengthening Serum for Combination Skin)
Brand	Emma Lewisham	Rationale
Category	serum	serum
Editor Rating	8.9/10	8.9/10
Category	serum	serum
Texture	Silky fluid	Concentrated serum
Finish	Soft satin	Plumped
Skin Types	Mature Combination	Combination
Targets	Fine Lines Hyperpigmentation Dullness	Fine Lines Dullness Redness
Pros	+Exceptional multi-tasker +Sustainability leadership +Visible results	+niacinamide + vitamin C + Argireline + Matrixyl-family peptides + centella + multi-weight HA is a remarkably dense active stack +engineered as the foundational treatment serum in the Essential Six routine +Rationale's 30+ year research and formulation pedigree +luxury-tier execution in texture, packaging, and brand experience
Cons	−Very premium −Slow shipping outside AU/NZ	−luxury pricing (~AU$220) puts it in the prestige tier of Australian skincare −limited international retail — primarily Australia plus selective dermatologist and luxury hotel distribution −the Essential Six numbered system requires consumer education to navigate −no targeted retinoid or AHA in the #1 position — that's by design but limits single-product use
Verdict	The serum every beauty editor name-drops. Peptides, bakuchiol, multiple actives — genuinely multi-tasking.	Rationale's #1 serum — the strengthening anchor of the Essential Six daily routine, designed for combination skin types. The active stack reflects Rationale's depth: niacinamide for tone-evening, sodium ascorbyl phosphate for stable vitamin C, peptides (Argireline + Matrixyl-3000-family Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7), centella asiatica for soothing, plus multi-weight hyaluronic acid for layered hydration. The formulation density is consistent with the AU$220 price point and matches what you'd expect from a luxury-tier Australian cosmeceutical with 30+ years of in-house research. The Australian counterpart to a SkinCeuticals C E Ferulic at a different active focus.

Ingredient Breakdown

Only in Skin Reset Serum

Peptides Niacinamide Vitamin C

Only in #1 The Serum (Strengthening Serum for Combination Skin)

None — all ingredients are shared

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Skin Reset Serum

#1 The Serum (Strengthening Serum for Combination Skin)

Brand

Emma Lewisham

Rationale

Category

serum

Texture

Silky fluid

Concentrated serum

Finish

Soft satin

Plumped

Skin Types

Mature Combination

Combination

Targets

Fine Lines Hyperpigmentation Dullness

Fine Lines Dullness Redness

Pros

+Exceptional multi-tasker
+Sustainability leadership
+Visible results

+niacinamide + vitamin C + Argireline + Matrixyl-family peptides + centella + multi-weight HA is a remarkably dense active stack
+engineered as the foundational treatment serum in the Essential Six routine
+Rationale's 30+ year research and formulation pedigree
+luxury-tier execution in texture, packaging, and brand experience

Cons

−Very premium
−Slow shipping outside AU/NZ

−luxury pricing (~AU$220) puts it in the prestige tier of Australian skincare
−limited international retail — primarily Australia plus selective dermatologist and luxury hotel distribution
−the Essential Six numbered system requires consumer education to navigate
−no targeted retinoid or AHA in the #1 position — that's by design but limits single-product use

Verdict

The serum every beauty editor name-drops. Peptides, bakuchiol, multiple actives — genuinely multi-tasking.

Rationale's #1 serum — the strengthening anchor of the Essential Six daily routine, designed for combination skin types. The active stack reflects Rationale's depth: niacinamide for tone-evening, sodium ascorbyl phosphate for stable vitamin C, peptides (Argireline + Matrixyl-3000-family Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7), centella asiatica for soothing, plus multi-weight hyaluronic acid for layered hydration. The formulation density is consistent with the AU$220 price point and matches what you'd expect from a luxury-tier Australian cosmeceutical with 30+ years of in-house research. The Australian counterpart to a SkinCeuticals C E Ferulic at a different active focus.