Biotin B-Complex Thickening Conditioner vs Bond Maintenance Conditioner No. 5: which is safer?

Biotin B-Complex Thickening Conditioner is our pick, better on PFAS and on the overall hazard picture.

Our pick

Avalon Organics

Biotin B-Complex Thickening Conditioner

PFAS grade

Excellent 85/100

Overall grade

Good 73/100

Verdict

Buy

Hazard flags

⚑ 3

Material

Water, conditioning agents, organic plant extracts

Confidence

72%

PossibleHeavy metals in plant-derived ingredients

PossibleFragrance allergen or undisclosed sensitizers

PossibleSilicone or plastic microparticle buildup on hair

Olaplex Bond Maintenance Conditioner No. 5

Olaplex

Bond Maintenance Conditioner No. 5

PFAS grade

Excellent 75/100

Overall grade

Good 67/100

Verdict

Buy

Hazard flags

⚑ 2

Material

Water-based conditioning polymers, silicones, plant-derived conditioning agents

Confidence

72%

PossibleFragrance allergens and sensitizers

PossibleSilicone accumulation and buildup

Where these two actually differ

  • We flag Heavy metals in plant-derived ingredients, Fragrance allergen or undisclosed sensitizers and Silicone or plastic microparticle buildup on hair on the Avalon Organics and not on the Olaplex.
  • We flag Fragrance allergens and sensitizers and Silicone accumulation and buildup on the Olaplex and not on the Avalon Organics.
  • The Avalon Organics is Water, conditioning agents, organic plant extracts where the Olaplex is Water-based conditioning polymers, silicones, plant-derived conditioning agents, which is most of the difference in these two grades.

Both products run through the same public rubric, which covers materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →

More conditioner, see the full ranking