Advice on Facial Cream Formulation for Oily, Dull, Acne-Prone Skin

Thank you for your question and for providing details about your skin type (oily, dull, acne-prone). It's great that you are researching ingredients!

Based on your goals (brightening, reducing acne, improving dullness) and the ingredients you are considering, here is some information:

Ingredients suitable for your concerns:

• For Brightening and Dullness:

  • Ethyl Ascorbic Acid (Vitamin C): A stable form of Vitamin C, excellent for brightening skin tone and reducing dark spots/PIH from acne.
  • Azelaic Acid: Helps with both acne and pigmentation. It can reduce inflammation associated with acne and inhibit melanin production, improving dullness and PIH.
  • Sym-White™ (Phenylethyl Resorcinol): A potent skin brightener that targets hyperpigmentation.
  • GlucoBright™ (Acetyl Glucosamine): Works to improve skin tone and reduce hyperpigmentation.
  • Licorice Extract (Licochalcone A): Has soothing properties and can help reduce redness and improve uneven skin tone/PIH.

• For Acne and Soothing:

  • Azelaic Acid: As mentioned, it's effective against acne bacteria and reduces inflammation.
  • Glycolic Acid (AHA): An exfoliant that helps unclog pores, improve skin texture, and reduce dullness. Use with caution as it can cause irritation, especially on acne-prone skin. Start with a low concentration.
  • Bisabolol, Calendula Extract, Allantoin: These ingredients are known for their soothing, anti-inflammatory, and healing properties, which are beneficial for calming irritated, acne-prone skin and supporting skin recovery.
  • Licorice Extract: Also provides soothing benefits.

• Base and Preservative:

  • Light Cream Maker™: This is an emulsifier needed to create the cream base.
  • Phenonip® P4: A preservative essential for preventing microbial growth and ensuring the safety and shelf-life of your homemade product.

How to use and Quantity:

As the staff mentioned, the recommended usage rate for each ingredient is available on its specific product page on the website. These rates are typically provided by the manufacturer and may include regulatory limits. It is crucial to follow these recommended percentages to ensure effectiveness and safety, and to avoid irritation.

Combining Ingredients:

You can combine several of these ingredients, but it's important to be mindful of potential irritation, especially when using multiple actives like Glycolic Acid, Azelaic Acid, and Vitamin C derivatives.

A possible approach could be:

1. Choose one or two primary actives for brightening/acne (e.g., Azelaic Acid + Ethyl Ascorbic Acid, or Azelaic Acid + a low concentration of Glycolic Acid).
2. Include soothing ingredients (e.g., Bisabolol, Allantoin, Licorice, Calendula) to help minimize irritation and support skin health.
3. Use Light Cream Maker™ as your base and Phenonip® P4 as your preservative according to their recommended usage rates.

Always perform a patch test before applying a new formulation to your entire face.

Remember that formulating skincare requires careful measurement, understanding ingredient compatibility, and proper manufacturing practices (hygiene, pH adjustment if needed).

I hope this helps you in your formulation journey!