Stretch Mark Serum – Advanced Peptide & Copper Complex for Smoother, Firmer Skin

Target the visible signs of stretch marks with our advanced Stretch Mark Serum.
Formulated with Regestril™, Copper Peptides, and clinically studied actives, this lightweight serum improves the appearance of stretch marks, leaving skin smoother, firmer, and more even in tone. With consistent use, many users report noticeable improvements in skin’s texture and visible reduction in stretch mark depth within weeks. Professionally developed in our Minnesota laboratory, this serum is a results-driven solution for more confident, resilient-looking skin.

The Science Behind Stretch Marks

Stretch marks appear when skin stretches rapidly — such as during pregnancy, growth, or lifestyle changes — causing the structural proteins collagen and elastin to become disrupted. This leads to visible lines, uneven tone, and textural changes in the skin.

Our Stretch Mark Serum addresses this concern with a potent blend of peptides, copper complexes, and botanicals designed to:

·       Support visible collagen and elastin renewal

·       Improve skin’s firmness and resilience

·       Reduce the appearance of stretch mark depth and texture

·       Brighten and smooth the look of uneven skin tone

Key Benefits

·       Improves the visible depth, color, and texture of stretch marks

·       Helps skin look firmer, smoother, and more resilient

·       Supports both new and existing stretch marks with consistent use

·       Lightweight, fast-absorbing formula ideal for daily use

·       Pairs well with moisturizers or body lotions for added comfort

Science-Backed Ingredients

·       Regestril™ – Clinically Studied Stretch Mark Complex
A proprietary blend of peptides and botanical extracts clinically shown to reduce the appearance of stretch marks while supporting skin’s firmness and elasticity.

·       Copper Tripeptide-1 – Advanced Peptide Technology
A powerful peptide that helps skin look firmer and more resilient while improving overall tone and smoothness.

·       Palmitoyl Tripeptide-1 & Palmitoyl Tetrapeptide-7 – Matrixyl Complex
Peptides known for their ability to improve visible firmness and reduce the look of aging-related changes.

·       Rutin & Green Bean Extract
Antioxidant-rich botanicals that help brighten and condition skin’s surface for a smoother appearance.

·       Panthenol (Pro-Vitamin B5)
Provides lightweight hydration and improves suppleness for softer, more comfortable skin.

How to Use

1.    Apply serum to targeted areas (abdomen, thighs, hips, or arms).

2.    Massage gently until fully absorbed.

3.    Use consistently twice daily for best results.

4.    Safe to layer under moisturizer or body lotion.

FAQ

Will this work on old stretch marks?
Yes. While results vary, Regestril™ and peptides have been shown to improve the appearance of both new and existing stretch marks with consistent use.

How long until I see results?
Many users notice visible improvements in skin tone and texture within 6–8 weeks of regular use.

Is it safe for postpartum skin?
Yes. The formula is gentle, lightweight, and designed for skin stressed by rapid changes, including post-pregnancy.

Formulated & Made in Minnesota

Every batch of Stretch Mark Serum is developed and manufactured in small runs in our Minnesota laboratory by professional skincare formulators. We use clinically studied actives at functional levels to ensure visible, lasting improvements in skin’s appearance.

Transform Your Skin

Whether caused by pregnancy, growth, or lifestyle changes, stretch marks can affect confidence. With Stretch Mark Serum by St. Croix Products, you can visibly improve stretch marks and reveal smoother, firmer, more even-toned skin.